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Rocket Report: Keeping up with Kuiper; New Glenn’s second flight slips

ariane 6, artemis II, astra, blue origin, Firefly Aerospace, moon, NASA, new glenn, rocket report, Security, Space, space launch system, spacex, starship, VIPER / Tim Belzer / September 26, 2025

Amazon plans to conduct two launches of Kuiper broadband satellites just days apart.

An unarmed Trident II D5 Life Extension (D5LE) missile launches from an Ohio-class ballistic missile submarine off the coast of Florida. Credit: US Navy

Welcome to Edition 8.12 of the Rocket Report! We often hear from satellite operators—from the military to venture-backed startups—about their appetite for more launch capacity. With so many rocket launches happening around the world, some might want to dismiss these statements as a corporate plea for more competition, and therefore lower prices. SpaceX is on pace to launch more than 150 times this year. China could end the year with more than 70 orbital launches. These are staggering numbers compared to global launch rates just a few years ago. But I’m convinced there’s room for more alternatives for reliable (and reusable) rockets. All of the world’s planned mega-constellations will need immense launch capacity just to get off the ground, and if successful, they’ll go into regular replacement and replenishment cycles. Throw in the still-undefined Golden Dome missile shield and many nations’ desire for a sovereign launch capability, and it’s easy to see the demand curve going up.

As always, we welcome reader submissions. If you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Sharp words from Astra’s Chris Kemp. Chris Kemp, the chief executive officer of Astra, apparently didn’t get the memo about playing nice with his competitors in the launch business. Kemp made some spicy remarks at the Berkeley Space Symposium 2025 earlier this month, billed as the largest undergraduate aerospace event at the university (see video of the talk). During the speech, Kemp periodically deviated from building up Astra to hurling insults at several of his competitors in the launch industry, Ars reports. To be fair to Kemp, some of his criticisms are not without a kernel of truth. But they are uncharacteristically rough all the same, especially given Astra’s uneven-at-best launch record and financial solvency to date.

Wait, what?! … Kemp is generally laudatory in his comments about SpaceX, but his most crass statement took aim at the quality of life of SpaceX employees at Starbase, Texas. He said life at Astra is “more fun than SpaceX because we’re not on the border of Mexico where they’ll chop your head off if you accidentally take a left turn.” For the record, no SpaceX employees have been beheaded. “And you don’t have to live in a trailer. And we don’t make you work six and a half days a week, 12 hours a day.” Kemp also accused Firefly Aerospace of sending Astra “garbage” rocket engines as part of the companies’ partnership on propulsion for Astra’s next-generation rocket.

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A step forward for Europe’s reusable rocket program. No one could accuse the European Space Agency and its various contractors of moving swiftly when it comes to the development of reusable rockets. However, it appears that Europe is finally making some credible progress, Ars reports. Last week, the France-based ArianeGroup aerospace company announced that it completed the integration of the Themis vehicle, a prototype rocket that will test various landing technologies, on a launch pad in Sweden. Low-altitude hop tests, a precursor for developing a rocket’s first stage that can vertically land after an orbital launch, could start late this year or early next.

Hopping into the future … “This milestone marks the beginning of the ‘combined tests,’ during which the interface between Themis and the launch pad’s mechanical, electrical, and fluid systems will be thoroughly trialed, with the aim of completing a test under cryogenic conditions,” ArianeGroup said. This particular rocket will likely undergo only short hops, initially about 100 meters. A follow-up vehicle, Themis T1E, is intended to fly medium-altitude tests at a later date. Some of the learnings from these prototypes will feed into a smaller, reusable rocket intended to lift 500 kilograms to low-Earth orbit. This is under development by MaiaSpace, a subsidiary of ArianeGroup. Eventually, the European Space Agency would like to use technology developed as part of Themis to develop a new line of reusable rockets that will succeed the Ariane 6 rocket.

Navy conducts Trident missile drills. The US Navy carried out four scheduled missile tests of a nuclear-capable weapons system off the coast of Florida within the last week, Defense News reports. The service’s Strategic Systems Programs conducted flights of unarmed Trident II D5 Life Extension missiles from a submerged Ohio-class ballistic missile submarine from September 17 to September 21 as part of an ongoing scheduled event meant to test the reliability of the system. “The missile tests were not conducted in response to any ongoing world events,” a Navy release said.

Secret with high visibility … The Navy periodically performs these Trident missile tests off the coasts of Florida and California, taking advantage of support infrastructure and range support from the two busiest US spaceports. The military doesn’t announce the exact timing of the tests, but warnings issued for pilots to stay out of the area give a general idea of when they might occur. One of the launch events Sunday was visible from Puerto Rico, illuminating the night sky in photos published on social media. The missiles fell in the Atlantic Ocean as intended, the Navy said. The Trident II D5 missiles were developed in the 1980s and are expected to remain in service on the Navy’s ballistic missile submarines into the 2040s. The Trident system is one leg of the US military’s nuclear triad, alongside land-based Minuteman ballistic missiles and nuclear-capable strategic bombers. (submitted by EllPeaTea)

Firefly plans for Alpha’s return to flight. Firefly Aerospace expects to resume Alpha launches in the “coming weeks,” with two flights planned before the end of the year, Space News reports. These will be the first flights of Firefly’s one-ton-class Alpha rocket since a failure in April destroyed a Lockheed Martin tech demo satellite after liftoff from California. In a quarterly earnings call, Firefly shared a photo showing its next two Alpha rockets awaiting shipment from the company’s Texas factory.

Righting the ship … These next two launches really need to go well for Firefly. The Alpha rocket has, at best, a mixed record with only two fully successful flights in six attempts. Two other missions put their payloads into off-target orbits, and two Alpha launches failed to reach orbit at all. Firefly went public on the NASDAQ stock exchange last month, raising nearly $900 million in the initial public offering to help fund the company’s future programs, namely the medium-lift Eclipse rocket developed in partnership with Northrop Grumman. There’s a lot to like about Firefly. The company achieved the first fully successful landing of a commercial spacecraft on the Moon in March. NASA has selected Firefly for three more commercial landings on the Moon, and Firefly reported this week it has an agreement with an unnamed commercial customer for an additional dedicated mission. But the Alpha program hasn’t had the same level of success. We’ll see if Firefly can get the rocket on track soon. (submitted by EllPeaTea)

Avio wins contract to launch “extra-European” mission. Italian rocket builder Avio has signed a launch services agreement with US-based launch aggregator SpaceLaunch for a Vega C launch carrying an Earth observation satellite for an “extra-European institutional customer” in 2027, European Spaceflight reports. Avio announced that it had secured the launch contract on September 18. According to the company, the contract was awarded through an open international competition, with Vega C chosen for its “versatility and cost-effectiveness.” While Avio did not reveal the identity of the “extra-European” customer, it said that it would do so later this year.

Plenty of peculiarities … There are several questions to unpack here, and Andrew Parsonson of European Spaceflight goes through them all. Presumably, extra-European means the customer is based outside of Europe. Avio’s statement suggests we’ll find out the answer to that question soon. Details about the US-based launch broker SpaceLaunch are harder to find. SpaceLaunch appears to have been founded in January 2025 by two former Firefly Aerospace employees with a combined 40 years of experience in the industry. On its website, the company claims to provide end-to-end satellite launch integration, mission management, and launch procurement services with a “portfolio of launch vehicle capacity around the globe.” SpaceLaunch boasts it has supported the launch of more than 150 satellites on 12 different launch vehicles. However, according to public records, it does not appear that the company itself has supported a single launch. Instead, the claim seems to credit SpaceLaunch with launches that were actually carried out during the two founders’ previous tenures at Spaceflight, Firefly Aerospace, Northrop Grumman, and the US Air Force. (submitted by EllPeaTea)

Falcon 9 launches three missions for NASA and NOAA. Scientists loaded three missions worth nearly $1.6 billion on a SpaceX Falcon 9 rocket for launch Wednesday, toward an orbit nearly a million miles from Earth, to measure the supersonic stream of charged particles emanating from the Sun, Ars reports. One of the missions, from the National Oceanic and Atmospheric Administration (NOAA), will beam back real-time observations of the solar wind to provide advance warning of geomagnetic storms that could affect power grids, radio communications, GPS navigation, air travel, and satellite operations. The other two missions come from NASA, with research objectives that include studying the boundary between the Solar System and interstellar space and observing the rarely seen outermost layer of our own planet’s atmosphere.

Immense value … All three spacecraft will operate in orbit around the L1 Lagrange point, a gravitational balance point located more than 900,000 miles (1.5 million kilometers) from Earth. Bundling these three missions onto the same rocket saved at least tens of millions of dollars in launch costs. Normally, they would have needed three different rockets. Rideshare missions to low-Earth orbit are becoming more common, but spacecraft departing for more distant destinations like the L1 Lagrange point are rare. Getting all three missions on the same launch required extensive planning, a stroke of luck, and fortuitous timing. “This is the ultimate cosmic carpool,” said Joe Westlake, director of NASA’s heliophysics division. “These three missions heading out to the Sun-Earth L1 point riding along together provide immense value for the American taxpayer.”

US officials concerned about China mastering reusable launch. SpaceX’s dominance in reusable rocketry is one of the most important advantages the United States has over China as competition between the two nations extends into space, US Space Force officials said Monday. But several Chinese companies are getting close to fielding their own reusable rockets, Ars reports. “It’s concerning how fast they’re going,” said Brig. Gen. Brian Sidari, the Space Force’s deputy chief of space operations for intelligence. “I’m concerned about when the Chinese figure out how to do reusable lift that allows them to put more capability on orbit at a quicker cadence than currently exists.”

By the numbers … China has used 14 different types of rockets on its 56 orbital-class missions this year, and none have flown more than 11 times. Eight US rocket types have cumulatively flown 145 times, with 122 of those using SpaceX’s workhorse Falcon 9. Without a reusable rocket, China must maintain more rocket companies to sustain a launch rate of just one-third to one-half that of the United States. This contrasts with the situation just four years ago, when China outpaced the United States in orbital rocket launches. The growth in US launches has been a direct result of SpaceX’s improvements to launch at a higher rate, an achievement primarily driven by the recovery and reuse of Falcon 9 boosters and payload fairings.

Atlas V launches more Kuiper satellites. Roughly an hour past sunrise on Thursday, an Atlas V rocket from United Launch Alliance took flight from Cape Canaveral Space Force Station, Florida. Onboard the rocket, flying in its most powerful configuration, were the next 27 Project Kuiper broadband satellites from Amazon, Spaceflight Now reports. This is the third batch of production satellites launched by ULA and the fifth overall for the growing low-Earth orbit constellation. The Atlas V rocket released the 27 Kuiper satellites about 280 miles (450 kilometers) above Earth. The satellites will use onboard propulsion to boost themselves to their assigned orbit at 392 miles (630 kilometers).

Another Kuiper launch on tap … With this deployment, Amazon now has 129 satellites in orbit. This is a small fraction of the network’s planned total of 3,232 satellites, but Amazon has enjoyed a steep ramp-up in the Kuiper launch cadence as the company’s satellite assembly line in Kirkland, Washington, continues churning out spacecraft. Another 24 Kuiper satellites are slated to launch September 30 on a SpaceX Falcon 9 rocket, and Amazon has delivered enough satellites to Florida for an additional launch later this fall. (submitted by EllPeaTea)

German military will fly with Ariane 6. Airbus Defense and Space has awarded Arianespace a contract to launch a pair of SATCOMBw-3 communications satellites for the German Armed Forces, European Spaceflight reports. Airbus is the prime contractor for the nearly $2.5 billion (2.1 billion euro) SATCOMBw-3 program, which will take over from the two-satellite SATCOMBw-2 constellation currently providing secure communications for the German military. Arianespace announced Wednesday that it had been awarded the contract to launch the satellites aboard two Ariane 6 rockets. “By signing this new strategic contract for the German Armed Forces, Arianespace accomplishes its core mission of guaranteeing autonomous access to space for European sovereign satellites,” said Arianespace CEO David Cavaillolès.

Running home to Europe … The chief goal of the Ariane 6 program is to provide Europe with independent access to space, something many European governments see as a strategic requirement. Several European military, national security, and scientific satellites have launched on SpaceX Falcon 9 rockets in the last few years as officials waited for the debut of the Ariane 6 rocket. With three successful Ariane 6 flights now in the books, European customers seem to now have the confidence to commit to flying their satellites on Ariane 6. (submitted by EllPeaTea)

Artemis II launch targeted for February. NASA is pressing ahead with preparations for the first launch of humans beyond low-Earth orbit in more than five decades, and officials said Tuesday that the Artemis II mission could take flight early next year, Ars reports. Although work remains to be done, the space agency is now pushing toward a launch window that opens on February 5, 2026, officials said during a news conference on Tuesday at Johnson Space Center. The Artemis II mission represents a major step forward for NASA and seeks to send four astronauts—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—around the Moon and back. The 10-day mission will be the first time astronauts have left low-Earth orbit since the Apollo 17 mission in December 1972.

Orion named Integrity … The first astronauts set to fly to the Moon in more than 50 years will do so in Integrity, Ars reports. NASA’s Artemis II crew revealed Integrity as the name of their Orion spacecraft during a news conference on Wednesday at the Johnson Space Center in Houston. “We thought, as a crew, we need to name this spacecraft. We need to have a name for the Orion spacecraft that we’re going to ride this magical mission on,” said Wiseman, commander of the Artemis II mission.

FAA reveals new Starship trajectories. Sometime soon, perhaps next year, SpaceX will attempt to fly one of its enormous Starship rockets from low-Earth orbit back to its launch pad in South Texas. A successful return and catch at the launch tower would demonstrate a key capability underpinning Elon Musk’s hopes for a fully reusable rocket. For this to happen, SpaceX must overcome the tyranny of geography. A new document released by the Federal Aviation Administration shows the narrow corridors Starship will fly to space and back when SpaceX tries to recover them, Ars reports.

Flying over people … It was always evident that flying a Starship from low-Earth orbit back to Starbase would require the rocket to fly over Mexico and portions of South Texas. The rocket launches to the east over the Gulf of Mexico, so it must approach Starbase from the west when it comes in for a landing. The new maps show SpaceX will launch Starships to the southeast over the Gulf and the Caribbean Sea, and directly over Jamaica, or to the northeast over the Gulf and the Florida peninsula. On reentry, the ship will fly over Baja California and Mexico’s interior near the cities of Hermosillo and Chihuahua, each with a population of roughly a million people. The trajectory would bring Starship well north of the Monterrey metro area and its 5.3 million residents, then over the Rio Grande Valley near the Texas cities of McAllen and Brownsville.

New Glenn’s second flight at least a month away. The second launch of Blue Origin’s New Glenn rocket, carrying a NASA smallsat mission to Mars, is now expected in late October or early November, Space News reports. Tim Dunn, NASA’s senior launch director at Kennedy Space Center, provided an updated schedule for the second flight of New Glenn in comments after a NASA-sponsored launch on a Falcon 9 rocket on Wednesday. Previously, the official schedule from NASA showed the launch date as no earlier than September 29.

No surprise … It was already apparent that this launch wouldn’t happen on September 29. Blue Origin has test-fired the second stage for the upcoming flight of the New Glenn rocket but hasn’t rolled the first stage to the launch pad for its static fire. Seeing the rocket emerge from Blue’s factory in Florida will be an indication that the launch date is finally near. Blue Origin will launch NASA’s ESCAPADE mission, a pair of small satellites to study how the solar wind interacts with the Martian upper atmosphere.

Blue Origin will launch a NASA rover to the Moon. NASA has awarded Blue Origin a task order worth up to $190 million to deliver its Volatiles Investigating Polar Exploration Rover (VIPER) to the Moon’s surface, Aviation Week & Space Technology reports. Blue Origin, one of 13 currently active Commercial Lunar Payload Services (CLPS) providers, submitted the only bid to carry VIPER to the Moon after NASA requested offers from industry last month. NASA canceled the VIPER mission last year, citing cost overruns with the rover and delays in its planned ride to the Moon aboard a lander provided by Astrobotic. But engineers had already completed assembly of the rover, and scientists protested NASA’s decision to terminate the mission.

Some caveats … Blue Origin will deliver VIPER to a location near the Moon’s south pole in late 2027 using a robotic Blue Moon MK1 lander, a massive craft larger than the Apollo lunar landing module. The company’s first Blue Moon MK1 lander is scheduled to fly to the Moon next year. NASA’s contract for the VIPER delivery calls for Blue Origin to design accommodations for the rover on the Blue Moon lander. The agency said it will decide whether to proceed with the actual launch on a New Glenn rocket and delivery of VIPER to the Moon based partially on the outcome of the first Blue Moon test flight next year.

Next three launches

Sept. 26: Long March 4C | Unknown Payload | Jiuquan Satellite Launch Center, China | 19: 20 UTC

Sept. 27: Long March 6A | Unknown Payload | Taiyuan Satellite Launch Center, China | 12: 39 UTC

Sept. 28: Falcon 9 | Starlink 11-20 | Vandenberg Space Force Base, California | 23: 32 UTC

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

Rocket Report: Keeping up with Kuiper; New Glenn’s second flight slips Read More »

Astra’s Chris Kemp woke up one recent morning and chose violence

astra, blue origin, Chris kemp, firefly, rocket, Space, spacex / Mike M. / September 25, 2025

Kemp generally praises SpaceX for leading the way with iterative design and founder Elon Musk’s willingness to fail publicly in order to move fast. However, in seeking to appeal to interns, he suggested that Astra offered a better working environment than SpaceX’s Starbase factory in South Texas.

“It’s more fun than SpaceX, because we’re not on the border of Mexico where they’ll chop your head off if you accidentally take a left turn,” he said. “And you don’t have to live in a trailer. And we don’t make you work six and a half days a week, 12 hours a day. It’s appreciated if you do, but not required.”

For the record, no SpaceX interns have been beheaded. And honestly, Chris, that is just a really crass thing to say.

Rocket Lab

Kemp’s longest and oldest rival in the launch industry is Rocket Lab and its founder, Peter Beck. This was especially apparent in a recent documentary that covered the rise of both Astra and Rocket Lab, called Wild Wild West. Kemp did not take any direct shots at Beck during his Berkeley speech.

However, in the late 2010s both Astra and Rocket Lab were racing to develop a small-lift rocket capable of lifting dozens to a few hundred kilograms to orbit, Rocket 3 and Electron. In hindsight, Kemp said, these rockets were not large enough to serve the market for satellites. There just were not enough CubeSats to go around.

“That little rocket is too small,” Kemp said in Berkeley about Rocket 3. “And so is Electron.”

A size comparison between Rocket 3, right, and Rocket 4. Credit: Astra

Electron may be small, but it has launched more than 70 times. It could generate as much as $200 million in revenue for Rocket Lab this year. And it has provided an excellent test bed for Rocket Lab as it seeks to build the much larger Neutron vehicle, with a reusable first stage.

Overall, Kemp’s talk is insightful, offering thoughtful commentary on Astra’s history and vision for the future. The company is a startup again, now focusing on building a mobile, tactical rocket that could serve national defense interests. Instead of focusing on reuse, the company wants to build a lot of rockets cheaply. It has built a large factory in California to accomplish this.

Also, after nine years in the launch industry, Kemp seems to have finally learned an important lesson about rockets: reliability matters.

“Rocket 3 was the cowboy rocket,” he said, noting the company has worked hard to improve its practices and manufacturing to build vehicles that won’t fail anymore. “The big idea was, you can’t get to scale without reliability.”

Astra’s Chris Kemp woke up one recent morning and chose violence Read More »

Starship will soon fly over towns and cities, but will dodge the biggest ones

cape canaveral, Commercial space, Federal Aviation Administration, Kennedy Space Center, launch, methane, NASA, Space, space force, spacex, starship / Mike M. / September 20, 2025

Starship’s next chapter will involve launching over Florida and returning over Mexico.

SpaceX’s Starship vehicle is encased in plasma as it reenters the atmosphere over the Indian Ocean on its most recent test flight in August. Credit: SpaceX

Some time soon, perhaps next year, SpaceX will attempt to fly one of its enormous Starship rockets from low-Earth orbit back to its launch pad in South Texas. A successful return and catch at the launch tower would demonstrate a key capability underpinning Elon Musk’s hopes for a fully reusable rocket.

In order for this to happen, SpaceX must overcome the tyranny of geography. Unlike launches over the open ocean from Cape Canaveral, Florida, rockets departing from South Texas must follow a narrow corridor to steer clear of downrange land masses.

All 10 of the rocket’s test flights so far have launched from Texas toward splashdowns in the Indian or Pacific Oceans. On these trajectories, the rocket never completes a full orbit around the Earth, but instead flies an arcing path through space before gravity pulls it back into the atmosphere.

If Starship’s next two test flights go well, SpaceX will likely attempt to send the soon-to-debut third-generation version of the rocket all the way to low-Earth orbit. The Starship V3 vehicle will measure 171 feet (52.1 meters) tall, a few feet more than Starship’s current configuration. The entire rocket, including its Super Heavy booster, will have a height of 408 feet (124.4 meters).

Starship, made of stainless steel, is designed for full reusability. SpaceX has already recovered and reflown Super Heavy boosters, but won’t be ready to recover the rocket’s Starship upper stage until next year, at the soonest.

That’s one of the next major milestones in Starship’s development after achieving orbital flight. SpaceX will attempt to bring the ship home to be caught back at the launch site by the launch tower at Starbase, Texas, located on the southernmost section of the Texas Gulf Coast near the US-Mexico border.

It was always evident that flying a Starship from low-Earth orbit back to Starbase would require the rocket to fly over Mexico and portions of South Texas. The rocket launches to the east over the Gulf of Mexico, so it must approach Starbase from the west when it comes in for a landing.

New maps published by the Federal Aviation Administration show where the first Starships returning to Texas may fly when they streak through the atmosphere.

Paths to and from orbit

The FAA released a document Friday describing SpaceX’s request to update its government license for additional Starship launch and reentry trajectories. The document is a draft version of a “tiered environmental assessment” examining the potential for significant environmental impacts from the new launch and reentry flight paths.

The federal regulator said it is evaluating potential impacts in aviation emissions and air quality, noise and noise-compatible land use, hazardous materials, and socioeconomics. The FAA concluded the new flight paths proposed by SpaceX would have “no significant impacts” in any of these categories.

SpaceX’s Starship rocket shortly before splashing into the Indian Ocean in August. Credit: SpaceX

The environmental review is just one of several factors the FAA considers when deciding whether to approve a new commercial launch or reentry license. According to the FAA, the other factors are public safety issues (such as overflight of populated areas and payload contents), national security or foreign policy concerns, and insurance requirements.

The FAA didn’t make a statement on any public safety and foreign policy concerns with SpaceX’s new trajectories, but both issues may come into play as the company seeks approval to fly Starship over Mexican towns and cities uprange from Starbase.

The regulator’s licensing rules state that a commercial launch and reentry should each pose no greater than a 1 in 10,000 chance of harming or killing a member of the public not involved in the mission. The risk to any individual should not exceed 1 in 1 million.

So, what’s the danger? If something on Starship fails, it could disintegrate in the atmosphere. Surviving debris would rain down to the ground, as it did over the Turks and Caicos Islands after two Starship launch failures earlier this year. Two other Starship flights ran into problems once in space, tumbling out of control and breaking apart during reentry over the Indian Ocean.

The most recent Starship flight last month was more successful, with the ship reaching its target in the Indian Ocean for a pinpoint splashdown. The splashdown had an error of just 3 meters (10 feet), giving SpaceX confidence in returning future Starships to land.

This map shows Starship’s proposed reentry corridor. Credit: Federal Aviation Administration

One way of minimizing the risk to the public is to avoid flying over large metropolitan areas, and that’s exactly what SpaceX and the FAA are proposing to do, at least for the initial attempts to bring Starship home from orbit. A map of a “notional” Starship reentry flight path shows the vehicle beginning its reentry over the Pacific Ocean, then passing over Baja California and soaring above Mexico’s interior near the cities of Hermosillo and Chihuahua, each with a population of roughly a million people.

The trajectory would bring Starship well north of the Monterrey metro area and its 5.3 million residents, then over the Rio Grande Valley near the Texas cities of McAllen and Brownsville. During the final segment of Starship’s return trajectory, the vehicle will begin a vertical descent over Starbase before a final landing burn to slow it down for the launch pad’s arms to catch it in midair.

In addition to Monterrey, the proposed flight path dodges overflights of major US cities like San Diego, Phoenix, and El Paso, Texas.

Let’s back up

Setting up for this reentry trajectory requires SpaceX to launch Starship into an orbit with exactly the right inclination, or angle to the equator. There are safety constraints for SpaceX and the FAA to consider here, too.

All of the Starship test flights to date have launched toward the east, threading between South Florida and Cuba, south of the Bahamas, and north of Puerto Rico before heading over the North Atlantic Ocean. For Starship to target just the right orbit to set up for reentry, the rocket must fly in a slightly different direction over the Gulf.

Another map released by the FAA shows two possible paths Starship could take. One of the options goes to the southeast between Mexico’s Yucatan Peninsula and the western tip of Cuba, then directly over Jamaica as the rocket accelerated into orbit over the Caribbean Sea. The other would see Starship departing South Texas on a northeasterly path and crossing over North Florida before reaching the Atlantic Ocean.

While both trajectories fly over land, they avoid the largest cities situated near the flight path. For example, the southerly route misses Cancun, Mexico, and the northerly path flies between Jacksonville and Orlando, Florida. “Orbital launches would primarily be to low inclinations with flight trajectories north or south of Cuba that minimize land overflight,” the FAA wrote in its draft environmental assessment.

The FAA analyzed two launch trajectory options for future orbital Starship test flights. Credit: Federal Aviation Administration

The proposed launch and reentry trajectories would result in temporary airspace closures, the FAA said. This could force delays or rerouting of anywhere from seven to 400 commercial flights for each launch, according to the FAA’s assessment.

Launch airspace closures are already the norm for Starship test flights. The FAA concluded that the reentry path over Mexico would require the closure of a swath of airspace covering more than 4,200 miles. This would affect up to 200 more commercial airplane flights during each Starship mission. Eventually, the FAA aims to shrink the airspace closures as SpaceX demonstrates improved reliability with Starship test flights.

Eventually, SpaceX will move some flights of Starship to Florida’s Space Coast, where rockets can safely launch in many directions over the Atlantic. By then, SpaceX aims to be launching Starships at a regular cadence—first, multiple flights per month, then per week, and then per day.

This will enable all of the things SpaceX wants to do with Starship. Chief among these goals is to fly Starships to Mars. Before then, SpaceX must master orbital refueling. NASA also has a contract with SpaceX to build Starships to land astronauts on the Moon’s south pole.

But all of that assumes SpaceX can routinely launch and recover Starships. That’s what engineers hope to soon prove they can do.

Starship will soon fly over towns and cities, but will dodge the biggest ones Read More »

After a very slow start, Europe’s reusable rocket program shows signs of life

Europe, falcon 9, reusable rocket, Space, spacex, Themis / Kris Guyer / September 20, 2025

No one could accuse the European Space Agency and its various contractors of moving swiftly when it comes to the development of reusable rockets. However, it appears that Europe is finally making some credible progress.

This week, the France-based ArianeGroup aerospace company announced that it had completed the integration of the Themis vehicle, a prototype rocket that will test various landing technologies, on a launch pad in Sweden. Low-altitude hop tests, a precursor for developing a rocket’s first stage that can vertically land after an orbital launch, could start late this year or early next.

“This milestone marks the beginning of the ‘combined tests,’ during which the interface between Themis and the launch pad’s mechanical, electrical, and fluid systems will be thoroughly trialed, with the aim of completing a test under cryogenic conditions,” the company said.

Finally getting going

The advancement of the Themis program represents a concrete step forward for Europe, which has had a delayed and somewhat confusing response to the rise of reusable rockets a decade ago.

After several years of development and testing, including the Grasshopper program in Texas to demonstrate vertical landing, SpaceX landed its first orbital rocket in December 2015. Weeks earlier, Blue Origin landed the much smaller New Shepard vehicle after a suborbital hop. This put the industry on notice that first stage reuse was on the horizon.

At this point, the European Space Agency had already committed to a new medium-lift rocket, the Ariane 6, and locked in a traditional design that would not incorporate any elements of reuse. Most of its funding focused on developing the Ariane 6.

However, by the middle of 2017, the space agency began to initiate programs that would eventually lead to a reusable launch vehicle. They included:

After a very slow start, Europe’s reusable rocket program shows signs of life Read More »

Northrop Grumman’s new spacecraft is a real chonker

commercial resupply services, Commercial space, falcon 9, international space station, launch, NASA, Northrop Grumman, Science, Space, spacex, thales alenia space / Kris Guyer / September 16, 2025

What happens when you use a SpaceX Falcon 9 rocket to launch Northrop Grumman’s Cygnus supply ship? A record-setting resupply mission to the International Space Station.

The first flight of Northrop’s upgraded Cygnus spacecraft, called Cygnus XL, is on its way to the international research lab after launching Sunday evening from Cape Canaveral Space Force Station, Florida. This mission, known as NG-23, is set to arrive at the ISS early Wednesday with 10,827 pounds (4,911 kilograms) of cargo to sustain the lab and its seven-person crew.

By a sizable margin, this is the heaviest cargo load transported to the ISS by a commercial resupply mission. NASA astronaut Jonny Kim will use the space station’s Canadian-built robotic arm to capture the cargo ship on Wednesday, then place it on an attachment port for crew members to open hatches and start unpacking the goodies inside.

A bigger keg

The Cygnus XL spacecraft looks a lot like Northrop’s previous missions to the station. It has a service module manufactured at the company’s factory in Northern Virginia. This segment of the spacecraft provides power, propulsion, and other necessities to keep Cygnus operating in orbit.

The most prominent features of the Cygnus cargo freighter are its circular, fan-like solar arrays and an aluminum cylinder called the pressurized cargo module that bears some resemblance to a keg of beer. This is the element that distinguishes the Cygnus XL from earlier versions of the Cygnus supply ship.

The cargo module is 5.2 feet (1.6 meters) longer on the Cygnus XL. The full spacecraft is roughly the size of two Apollo command modules, according to Ryan Tintner, vice president of civil space systems at Northrop Grumman. Put another way, the volume of the cargo section is equivalent to two-and-a-half minivans.

“The most notable thing on this mission is we are debuting the Cygnus XL configuration of the spacecraft,” Tintner said. “It’s got 33 percent more capacity than the prior Cygnus spacecraft had. Obviously, more may sound like better, but it’s really critical because we can deliver significantly more science, as well as we’re able to deliver a lot more cargo per launch, really trying to drive down the cost per kilogram to NASA.”

A SpaceX Falcon 9 rocket ascends to orbit Sunday after launching from Cape Canaveral Space Force Station, Florida, carrying Northrop Grumman’s Cygnus XL cargo spacecraft toward the International Space Station. Credit: Manuel Mazzanti/NurPhoto via Getty Images

Cargo modules for Northrop’s Cygnus spacecraft are built by Thales Alenia Space in Turin, Italy, employing a similar design to the one Thales used for several of the space station’s permanent modules. Officials moved forward with the first Cygnus XL mission after the preceding cargo module was damaged during shipment from Italy to the United States earlier this year.

Northrop Grumman’s new spacecraft is a real chonker Read More »

Rocket Report: Russia’s rocket engine predicament; 300th launch to the ISS

astrobotic, falcon 9, india, international space station, NASA, North Korea, PSLV, rocket report, russia, Science, Space, space launch system, spacex, starship / Rejus Almole / September 12, 2025

North Korea test-fired a powerful new solid rocket motor for its next-generation ICBM.

A Soyuz-2.1a rocket is propelled by kerosene-fueled RD-107A and RD-108A engines after lifting off Thursday with a resupply ship bound for the International Space Station. Credit: Roscosmos

Welcome to Edition 8.10 of the Rocket Report! Dear readers, if everything goes according to plan, four astronauts are less than six months away from traveling around the far side of the Moon and breaking free of low-Earth orbit for the first time in more than 53 years. Yes, there are good reasons to question NASA’s long-term plans for the Artemis lunar program—the woeful cost of the Space Launch System rocket, the complexity of new commercial landers, and a bleak budget outlook. But many of us who were born after the Apollo Moon landings have been waiting for this moment our whole lives. It is almost upon us.

North Korea fires solid rocket motor. North Korea said Tuesday it had conducted the final ground test of a solid-fuel rocket engine for a long-range ballistic missile in its latest advancement toward having an arsenal that could viably threaten the continental United States, the Associated Press reports. The test Monday observed by leader Kim Jong Un was the ninth of the solid rocket motor built with carbon fiber and capable of producing 1,971 kilonewtons (443,000 pounds) of thrust, more powerful than past models, according to the North’s official Korean Central News Agency.

Mobility and flexibility … Solid-fueled intercontinental ballistic missiles, or ICBMs, have advantages over liquid-fueled missiles, which have historically comprised the bulk of North Korea’s inventory. Solid rocket motors can be stored for longer periods of time and are easier to conceal, transport, and launch on demand. The new solid rocket motor will be used on a missile called the Hwasong-20, according to North Korean state media. The AP reports some analysts say North Korea may conduct another ICBM test around the end of the year, showcasing its military strength ahead of a major ruling party congress expected in early 2026.

Sign Me Up!

Astrobotic eyes Andøya. US-based lunar logistics company Astrobotic and Norwegian spaceport operator Andøya Space have signed a term sheet outlining the framework for a Launch Site Agreement, European Spaceflight reports. The agreement, once finalized, will facilitate flights of Astrobotic’s Xodiac lander testbed from the Andøya Space facilities. The Xodiac vertical takeoff, vertical landing rocket was initially developed by Masten Space Systems to simulate landing on the Moon and Mars. When Masten filed for bankruptcy in 2022, Astrobotic acquired its intellectual property and assets, including the Xodiac vehicle.

Across the pond … So far, the small Xodiac rocket has flown on low-altitude atmospheric hops from Mojave, California, reaching altitudes of up to 500 meters, or 1,640 feet. The agreement between Astrobotic and Andøya paves the way for “several” Xodiac flight campaigns from Andøya Space facilities on the Norwegian coast. “Xodiac’s presence at Andøya represents a meaningful step toward delivering reliable, rapid, and cost-effective testing and demonstration capabilities to the European space market,” said Astrobotic CEO John Thornton.

Ursa Major breaks ground in Colorado. Ursa Major on Wednesday said it has broken ground on a new 400-acre site where it will test and qualify large-scale solid rocket motors for current and future missiles, including the Navy’s Standard Missile fleet, Defense Daily reports. The new site in Weld County, Colorado, north of Denver, will be ready for testing to begin in the fourth quarter of 2025. Ursa Major will be able to conduct full-scale static firings, and drop and temperature storage testing for current and future missile systems.

Seeking SRM options … Ursa Major said the new facility will support national and missile defense programs. The company’s portfolio includes solid rocket motors (SRMs) ranging from 2 inches to 22 inches in diameter for missiles like the Stinger, Javelin, and air-defense interceptors. Ursa Major aims to join industry incumbents Northrop Grumman, L3Harris, and newcomer Anduril as a major supplier of SRMs to the government. “This facility represents a major step forward in our ability to deliver qualified SRMs that are scalable, flexible, and ready to meet the evolving threat environment,” said Dan Jablonsky, CEO of Ursa Major, in a statement. “It’s a clear demonstration of our commitment and ability to rapidly advance and expand the American-made solid rocket motor industrial base that the country needs, ensuring warfighters will have the quality and quantity of SRMs needed to meet mission demands.”

Falcon 9 launches first satellites in a military megaconstellation. The first 21 satellites in a constellation that could become a cornerstone for the Pentagon’s Golden Dome missile-defense shield successfully launched from California Wednesday aboard a SpaceX Falcon 9 rocket, Ars reports. The Falcon 9 took off from Vandenberg Space Force Base, California, and headed south over the Pacific Ocean, reaching an orbit over the poles before releasing the 21 military-owned satellites to begin several weeks of activations and checkouts.

First of many … These 21 satellites will boost themselves to a final orbit at an altitude of roughly 600 miles (1,000 kilometers). The Pentagon plans to launch 133 more satellites over the next nine months to complete the build-out of the Space Development Agency’s first-generation, or Tranche 1, constellation of missile-tracking and data-relay satellites. Military officials have worked for six years to reach this moment. The Space Development Agency (SDA) was established during the first Trump administration, which made plans for an initial set of demonstration satellites that launched a couple of years ago. In 2022, the Pentagon awarded contracts for the first 154 operational spacecraft, including the ones launched Wednesday. “Back in 2019, when the SDA was stood up, it was to do two things. One was to make sure that we can do beyond line of sight targeting, and the other was to pace the threat, the emerging threat, in the missile-warning and missile-tracking domain. That’s what the focus has been,” said Gurpartap “GP” Sandhoo, the SDA’s acting director.

Another Falcon 9 was delayed three times. SpaceX scrubbed launching a communications satellite from an Indonesian company for a third consecutive day Wednesday, Spaceflight Now reports. Possible technical issues got in the way of a launch attempt Wednesday evening after back-to-back days of weather delays at Cape Canaveral Space Force Station, Florida. The Falcon 9 finally launched Thursday evening with the Boeing-built Nusantara Lima communications satellite, targeting a geosynchronous transfer orbit. It’s the latest satellite from the Indonesian company Pasifik Satelit Nusantara.

A declining market … This was just the fifth geosynchronous communications satellite to launch on a commercial rocket this year, all by SpaceX. There were 21 such satellites that launched on commercial vehicles in 2015, including SpaceX’s Falcon 9, Europe’s Ariane 5, Russia’s Proton, ULA’s Atlas V, and Japan’s H-IIA. Much of the world’s launch capacity today is used to deploy smaller communications satellites into low-Earth orbit, primarily for broadband connectivity rather than for the video broadcast market once dominated by higher-altitude geosynchronous satellites.

Putin urges Russia to build more rocket engines. Russian President Vladimir Putin urged aerospace industry leaders on September 5 to press on with efforts to develop booster rocket engines for space launch vehicles and build on Russia’s longstanding reputation as a leader in space technology, Reuters reports. Putin, who spent the preceding days in China and the Russian far eastern port of Vladivostok, flew to the southern Russian city of Samara, where he met industry specialists and toured the Kuznetsov design bureau engine manufacturing plant.

A shell of its former self … “It is important to consistently renew production capacity in terms of engines for booster rockets,” Russian news agencies quoted Putin as saying during the visit. “And in doing so, we must not only meet our own current and future needs but also move actively on world markets and be successful competitors.” The Kuznetsov plant in Samara builds medium-class RD-107 and RD-108 engines for Russia’s Soyuz-2 rockets, which launch Russian military satellites and crew and cargo to the International Space Station. Their designs can be traced to the dawn of the Space Age nearly 70 years ago. Meanwhile, the outlook for heavier-duty Russian rocket engines is murky, at best. Russia’s most-flown large rocket engine in the post-Cold War era, the RD-180, produced by a company called Energomash, is out of production after the end of sales to the United States.

India nabs a noteworthy launch contract. Astroscale, a satellite servicing and space debris mitigation company based in Japan, has selected India’s Polar Satellite Launch Vehicle (PSLV) to deliver a small satellite named ISSA-J1 to orbit in 2027. This is an interesting mission. The ISSA-J1 spacecraft will fly up to two large pieces of satellite debris in orbit to image and inspect them. ISSA-J1, developed in partnership with the Japanese government, is one in a series of Astroscale missions testing different ways of approaching, monitoring, capturing, and refueling other objects in space. The launch agreement was signed between Astroscale and NewSpace India Limited, the commercial arm of India’s space agency.

Rideshare not an option … “We selected NSIL after thorough evaluations of more than 10 launch service providers over the past year, considering technical capabilities, track record, cost, and other elements,” said Eddie Kato, president and managing director of Astroscale Japan. India’s PSLV is right-sized for a mission like this. ISSA-J1 is a rarity in that it must launch on a dedicated rocket because it has to reach a specific orbit to line up with the pieces of space debris it will approach and inspect. Rideshare launches, such as those that routinely fly on SpaceX’s Falcon 9 rocket, are cheaper but go to standard orbits popular for many different types of satellite missions. A dedicated launch on a Falcon 9 would presumably have been more expensive than a flight on India’s smaller PSLV. Rocket Lab’s Electron, another rocket popular for dedicated launches of small satellites, lacks the performance required for Astroscale’s mission.

Russian cargo en route to ISS. Another cargo ship is flying to humanity’s orbital outpost with the successful launch of Russia’s Progress MS-32 supply freighter Thursday from the Baikonur Cosmodrome in Kazakhstan, NASASpaceflight.com reports. The supply ship launched aboard a Soyuz-2.1a rocket and arrived in orbit about nine minutes later, kicking off a two-day pursuit of the International Space Station. This was the 300th launch of an assembly, crew, or cargo mission to the ISS since 1998, including a handful of missions that didn’t reach the complex due to rocket or spacecraft failures.

Important stuff … The Progress MS-32 cargo craft will dock with the aft port of the space station’s Russian Zvezda service module Saturday. The payloads flying on the Progress mission include food, experiments, clothing, water, air, and propellant to be pumped into the space station’s onboard tanks. The spacecraft will also reboost the lab’s orbit.

Metallic tiles? Not so great. It has been two weeks since SpaceX’s last Starship test flight, and engineers have diagnosed issues with its heat shield, identified improvements, and developed a preliminary plan for the next time the ship heads into space, Ars reports. Bill Gerstenmaier, a SpaceX executive in charge of build and flight reliability, presented the findings Monday at the American Astronautical Society’s Glenn Space Technology Symposium in Cleveland. The test flight went “extremely well,” Gerstenmaier said, but he noted some important lessons learned with the ship’s heat shield.

Crunch wrap reigns supreme … “We were essentially doing a test to see if we could get by with non-ceramic tiles, so we put three metal tiles on the side of the ship to see if they would provide adequate heat control, because they would be simpler to manufacture and more durable than the ceramic tiles. It turns out they’re not,” Gerstenmaier said. “The metal tiles… didn’t work so well.” One bright spot with the heat shield was the performance of a new experimental material around and under the tiles. “We call it crunch wrap,” Gerstenmaier said. “It’s like a wrapping paper that goes around each tile.” On the next Starship flight, SpaceX will likely cover more parts of the heat shield with this crunch wrap material. Gerstenmaier said the inaugural flight of Starship Version 3, with upgraded engines and more fuel, is now set to occur next year.

An SLS compromise might be afoot in DC. The Trump administration is seeking to cancel NASA’s Space Launch System rocket after two more flights, but key lawmakers in Congress, including Republican Sen. Ted Cruz of Texas, aren’t ready to go along. So is this an impasse? Possibly not, as sources say the White House and Congress may not be all that far apart on how to handle this. The solution involves canceling part of the SLS rocket now, but not all of it, Ars reports.

Goodbye EUS? … The compromise might be to cancel a large new upper stage for the SLS rocket called the Exploration Upper Stage. This would save NASA billions of dollars, and the agency could instead procure commercial upper stages, such as those built by United Launch Alliance or Blue Origin, to fly on SLS rockets after NASA’s Artemis III mission. It would also eliminate the need for NASA to finish building an expensive new launch tower at Kennedy Space Center, Florida. The upper stage flying on the first three SLS missions is no longer in production. Sources indicated to Ars that Blue Origin has already begun work on a modified version of its New Glenn upper stage that could fit within the shroud of the SLS rocket.

Next three launches

Sept. 13: Soyuz-2.1b | Glonass-K1 No. 18L | Plesetsk Cosmodrome, Russia | 02: 30 UTC

Sept. 13: Falcon 9 | Starlink 17-10 | Vandenberg Space Force Base, California | 15: 41 UTC

Sept. 14: Falcon 9 | Cygnus NG-23 | Cape Canaveral Space Force Station, Florida | 22: 11 UTC

Rocket Report: Russia’s rocket engine predicament; 300th launch to the ISS Read More »

Pentagon begins deploying new satellite network to link sensors with shooters

falcon 9, launch, military space, Science, Space, space development agency, spacex, US Space Force, Vandenberg space force base, york space systems / Mike M. / September 11, 2025

“This is the first time we’ll have a space layer fully integrated into our warfighting operations.”

A SpaceX Falcon 9 rocket lifts off from Vandenberg Space Force Base, California, with a payload of 21 data-relay satellites for the US military’s Space Development Agency. Credit: SpaceX

The first 21 satellites in a constellation that could become a cornerstone for the Pentagon’s Golden Dome missile-defense shield successfully launched from California Wednesday aboard a SpaceX Falcon 9 rocket.

The Falcon 9 took off from Vandenberg Space Force Base, California, at 7: 12 am PDT (10: 12 am EDT; 14: 12 UTC) and headed south over the Pacific Ocean, heading for an orbit over the poles before releasing the 21 military-owned satellites to begin several weeks of activations and checkouts.

These 21 satellites will boost themselves to a final orbit at an altitude of roughly 600 miles (1,000 kilometers). The Pentagon plans to launch 133 more satellites over the next nine months to complete the build-out of the Space Development Agency’s first-generation, or Tranche 1, constellation of missile-tracking and data-relay satellites.

“We had a great launch today for the Space Development Agency, putting this array of space vehicles into orbit in support of their revolutionary new architecture,” said Col. Ryan Hiserote, system program director for the Space Force’s assured access to space launch execution division.

Over the horizon

Military officials have worked for six years to reach this moment. The Space Development Agency (SDA) was established during the first Trump administration, which made plans for an initial set of demonstration satellites that launched a couple of years ago. In 2022, the Pentagon awarded contracts for the first 154 operational spacecraft. The first batch of 21 data-relay satellites built by Colorado-based York Space Systems is what went up Wednesday.

“Back in 2019, when the SDA was stood up, it was to do two things. One was to make sure that we can do beyond line of sight targeting, and the other was to pace the threat, the emerging threat, in the missile-warning and missile-tracking domain. That’s what the focus has been,” said Gurpartap “GP” Sandhoo, the SDA’s acting director.

Secretary of the Air Force Troy Meink and Sen. Kevin Cramer (R-N.D.) pose with industry and government teams in front of the Space Development’s first 21 operational satellites at Vandenberg Space Force Base, California. Cramer is one the most prominent backers of the Golden Dome program in the US Senate. Credit: US Air Force/Staff Sgt. Daekwon Stith

Historically, the military communications and missile-warning networks have used a handful of large, expensive satellites in geosynchronous orbit some 22,000 miles (36,000 kilometers) above the Earth. This architecture was devised during the Cold War and is optimized for nuclear conflict and intercontinental ballistic missiles.

For example, the military’s ultra-hardened Advanced Extremely High Frequency satellites in geosynchronous orbit are designed to operate through an electromagnetic pulse and nuclear scintillation. The Space Force’s missile-warning satellites are also in geosynchronous orbit, with infrared sensors tuned to detect the heat plume of a missile launch.

The problem? Those satellites cost more than $1 billion a pop. They’re also vulnerable to attack from a foreign adversary. Pentagon officials say the SDA’s satellite constellation, officially called the Proliferated Warfighter Space Architecture, is tailored to detect and track more modern threats, such as smaller missiles and hypersonic weapons carrying conventional warheads. It’s easier for these missiles to evade the eyes of older early warning satellites.

What’s more, the SDA’s fleet in low-Earth orbit will have numerous satellites. Losing one or several satellites to an attack would not degrade the constellation’s overall capability. The SDA’s new relay satellites cost between $14 and $15 million each, according to Sandhoo. The total cost of the first tranche of 154 operational satellites totals approximately $3.1 billion.

Multi-mission satellites

These satellites will not only detect and track ballistic and hypersonic missile launches; they will also transmit signals between US forces using an existing encrypted tactical data link network known as Link 16. This UHF system is used by NATO and other US allies to allow military aircraft, ships, and land forces to share tactical information through text messages, pictures, data, and voice communication in near real time, according to the SDA’s website.

Up to now, Link 16 radios were ubiquitous on fighter jets, helicopters, naval vessels, and missile batteries. But they had a severe limitation. Link 16 was only able to close a radio link with a clear line of sight. The Space Development Agency’s satellites will change that, providing direct-to-weapon connectivity from sensors to shooters on Earth’s surface, in the air, and in space.

The relay satellites, which the SDA calls the transport layer, are also equipped with Ka-band and laser communication terminals for higher-bandwidth connectivity.

“What the transport layer does is it extends beyond the line of sight,” Sandhoo said. “Now, you’re able to talk not only to within a couple of miles with your Link 16 radios, (but) we can use space to, let’s say, go from Hawaii out to Guam using those tactical radios, using a space layer.”

The Space Development Agency’s “Tranche 1” architecture includes 154 operational satellites, 126 for data relay and 28 for missile tracking. With this illustration, the SDA does its best to show how the complex architecture is supposed to work. Credit: Space Development Agency

Another batch of SDA relay satellites will launch next month, and more will head to space in November. In all, it will take 10 launches to fully deploy the SDA’s Tranche 1 constellation. Six of those missions will carry data-relay satellites, and four will carry satellites with sensors to detect and track missile launches. The Pentagon selected several contractors to build the satellites, so the military is not reliant on a single company. The builders of the SDA’s operational satellites include York, Lockheed Martin, Northrop Grumman, and L3Harris.

“We will increase coverage as we get the rest of those launches on orbit,” said Michael Eppolito, the SDA’s acting deputy director.

The satellites will connect with one another using inter-satellite laser links, creating a mesh network with sufficient range to provide regional communications, missile warning, and targeting coverage over the Western Pacific beginning in 2027. US Indo-Pacific Command, which oversees military operations in this region, is slated to become the first combatant command to take up use of the SDA’s satellite constellation.

This is not incidental. US officials see China as the nation’s primary strategic threat, and Indo-Pacific Command would be on the front lines of any future conflict between Chinese and US forces. The SDA has contracts in place for more than 270 second-generation, or Tranche 2, satellites, to further expand the network’s reach. There’s also a third generation in the works, but the Pentagon has paused part of the SDA’s Tranche 3 program to evaluate other architectures, including one offered by SpaceX.

Teaching tactical operators to use the new capabilities offered by the SDA’s satellite fleet could be just as challenging as building the network itself. To do this, the Pentagon plans to put soldiers, sailors, airmen, and marines through “warfighter immersion” training beginning next year. This training will allow US forces to “get used to using space from this construct,” Sandhoo said.

“This is different than how it has been done in the past,” Sandhoo said. “This is the first time we’ll have a space layer actually fully integrated into our warfighting operations.”

The SDA’s satellite architecture is a harbinger for what’s to come with the Pentagon’s Golden Dome system, a missile-defense shield for the US homeland proposed by President Donald Trump in an executive order in January. Congress authorized a down payment on Golden Dome in July, the first piece of funding for what the White House says will cost $175 billion over the next three years.

Golden Dome, as currently envisioned, will require thousands of satellites in low-Earth orbit to track missile launches and space-based interceptors to attempt to shoot them down. The Trump administration hasn’t said how much of the shield might be deployed by the end of 2028, or what the entire system might eventually cost.

But the capabilities of the SDA’s satellites will lay the foundation for any regional or national missile-defense shield. Therefore, it seems likely that the military will incorporate the SDA network into Golden Dome, which, at least at first, is likely to consist of technologies already in space or nearing launch. Apart from the Space Development Agency’s architecture in low-Earth orbit (LEO), the Space Force was already developing a new generation of missile-warning satellites to replace aging platforms in geosynchronous orbit (GEO), plus a fleet of missile-warning satellites to fly at a midrange altitude between LEO and GEO.

Air Force Gen. Gregory Guillot, commander of US Northern Command, said in April that Golden Dome “for the first time integrates multiple layers into one system that allows us to detect, track, and defeat multiple types of threats that affect us in different domains.

“So, while a lot of the components and the requirements were there in the past, this is the first time that it’s all tied together in one system,” he said.

Pentagon begins deploying new satellite network to link sensors with shooters Read More »

Lull in Falcon Heavy missions opens window for SpaceX to build new landing pads

Commercial space, falcon 9, falcon heavy, Federal Aviation Administration, launch, NASA, reusability, Science, Space, spacex / Tim Belzer / September 4, 2025

SpaceX’s goal for this year is 170 Falcon 9 launches, and the company is on pace to come close to this target. Most Falcon 9 launches carry SpaceX’s own Starlink broadband satellites into orbit. The FAA’s environmental approval opens the door for more flights from SpaceX’s busiest launch pad.

But launch pad availability is not the only hurdle limiting how many Falcon 9 flights can take off in a year. There’s also the rate of production for Falcon 9 upper stages, which are new on each flight, and the time it takes for each vessel in SpaceX’s fleet of drone ships (one in California, two in Florida) to return to port with a recovered booster and redeploy back to sea again for the next mission. SpaceX lands Falcon 9 boosters on offshore drone ships after most of its launches and only brings the rocket back to an onshore landing on missions carrying lighter payloads to orbit.

When a Falcon 9 booster does return to landing on land, it targets one of SpaceX’s recovery zones at military-run spaceports in Florida and California. SpaceX’s landing zone at Vandenberg Space Force Base in California is close to the Falcon 9 launch pad there.

The Space Force wants SpaceX, and potentially other future reusable rocket companies, to replicate the side-by-side launch and landing pads at Cape Canaveral.

To do that, the FAA also gave the green light Wednesday for SpaceX to construct and operate a new rocket landing zone at SLC-40 and conduct up to 34 first-stage booster landings there each year. The landing zone will consist of a 280-foot diameter concrete pad surrounded by a 60-foot-wide gravel apron. The landing zone’s broadest diameter, including the apron, will measure 400 feet.

The location of SpaceX’s new rocket landing pad is shown with the red circle, approximately 1,000 feet northeast of the Falcon 9 rocket’s launch pad at Space Launch Complex-40. Credit: Google Maps/Ars Technica

SpaceX is in an earlier phase of planning for a Falcon landing pad at historic Launch Complex-39A at NASA’s Kennedy Space Center, just a few miles north of SLC-40. SpaceX uses LC-39A as a launch pad for most Falcon 9 crew launches, all Falcon Heavy missions, and, in the future, flights of the company’s gigantic next-generation rocket, Starship. SpaceX foresees Starship as a replacement for Falcon 9 and Falcon Heavy, but the company’s continuing investment in Falcon-related infrastructure shows the workhorse rocket will stick around for a while.

Lull in Falcon Heavy missions opens window for SpaceX to build new landing pads Read More »

Starship’s heat shield appears to have performed quite well in test

flight 10, heat shield, Space, spacex, starship / Mike M. / August 29, 2025

One of the more curious aspects of the 10th flight of SpaceX’s Starship rocket on Tuesday was the striking orange discoloration of the second stage. This could be observed on video taken from a buoy near the landing site as the vehicle made a soft landing in the Indian Ocean.

This color—so different from the silvery skin and black tiles that cover Starship’s upper stage—led to all sorts of speculation. Had heating damaged the stainless steel skin? Had the vehicle’s tiles been shucked off, leaving behind some sort of orange adhesive material? Was this actually NASA’s Space Launch System in disguise?

The answer to this question was rather important, as SpaceX founder Elon Musk had said before this flight that gathering data about the performance of this heat shield was the most important aspect of the mission.

We got some answers on Thursday. During the afternoon, the company posted some new high-resolution photos, taken by a drone in the vicinity of the landing location. They offered a clear view of the Starship vehicle with its heat shield intact, albeit with a rust-colored tint.

Musk provided some clarity on this discoloration on Thursday evening, writing on the social media site X, “Worth noting that the heat shield tiles almost entirely stayed attached, so the latest upgrades are looking good! The red color is from some metallic test tiles that oxidized and the white is from insulation of areas where we deliberately removed tiles.”

The new images and information from Musk suggest that SpaceX is making progress on developing a heat shield for Starship. This really is the key technology to make an upper stage rapidly reusable—NASA’s space shuttle orbiters were reusable but required a standing army to refurbish the vehicle between flights. To unlock Starship’s potential, SpaceX wants to be able to refly Starships within 24 hours.

Starship’s heat shield appears to have performed quite well in test Read More »

Rocket Report: SpaceX achieved daily launch this week; ULA recovers booster

alpha rocket, falcon 9, Firefly Aerospace, launch, rocket report, Science, Space, spacex, Starbase, starship, united launch alliance, vulcan, wallops island / Rejus Almole / August 29, 2025

Firefly Aerospace reveals why its Alpha booster exploded after launch in April.

Starship and its Super Heavy booster ascend through a clear sky over Starbase, Texas, on Tuesday evening. A visible vapor cone enveloped the rocket as it passed through maximum aerodynamic pressure and the speed of sound. Credit: Stephen Clark/Ars Technica

Welcome to Edition 8.08 of the Rocket Report! What a week it’s been for SpaceX. The company completed its first successful Starship test flight in nearly a year, and while it wasn’t perfect, it sets up SpaceX for far more ambitious tests ahead. SpaceX’s workhorse rocket, the Falcon 9, launched six times since our last edition of the Rocket Report. Many of these missions were noteworthy in their own right, including the launch of the US military’s X-37B spaceplane, an upgraded Dragon capsule to boost the International Space Station to a higher orbit, and the record 30th launch and landing of a flight-proven Falcon 9 booster. All told, that’s seven SpaceX launches in seven days.

Firefly announces cause of Alpha launch failure. Firefly Aerospace closed the investigation into the failure of one of its Alpha rockets during an April mission for Lockheed Martin and received clearance from the FAA to resume launches, Payload reports. The loss of the launch vehicle was a dark cloud hanging over the company’s otherwise successful IPO this month. The sixth flight of Firefly’s Alpha rocket launched in April from Vandenberg Space Force Base, California, and failed when its first stage booster broke apart milliseconds after stage separation. This created a shockwave that destroyed the engine nozzle extension on the second stage, damaging the engine before the second stage ran out of propellant seconds before it attained orbital velocity. Both stages ultimately fell into the Pacific Ocean.

Too much stress … Investigators concluded that “plume induced flow separation” caused the failure. The phenomenon occurs when a rocket’s exhaust disrupts airflow around the vehicle in flight. In this case, Firefly said the rocket was flying at a higher angle of attack than prior missions, which resulted in the flow separation and created intense heat that broke the first stage apart just after it jettisoned from the second stage. Firefly will increase heat shielding on the first stage of the rocket and fly at reduced angles of attack on future missions. Alpha has now launched six times since 2021, with only two complete successes. Firefly said it was working on setting a date for the seventh Alpha launch. (submitted by EllPeaTea)

Sign Me Up!

ESA books a ticket on European launchers. The European Space Agency has awarded launch service contracts to Avio and Isar Aerospace under its Flight Ticket Initiative, European Spaceflight reports. Announced in October 2023, the Flight Ticket Initiative is a program run jointly by ESA and the European Union that offers subsidized flight opportunities for European companies and organizations seeking to demonstrate new satellite technologies in orbit. The initiative is part of ESA’s strategy to foster the continent’s commercial space industry, offering institutional funding to support satellite and launch companies. Avio won contracts to launch three small European space missions as secondary payloads on Vega C rockets flying into low-Earth orbit. Isar Aerospace will launch two small satellite missions to orbit for European companies.

No other options … Avio and Isar Aerospace were the obvious contenders for the Flight Ticket Initiative from a pool of five European companies eligible for launch awards. The other companies, PLD Space, Orbex, and Rocket Factory Augsburg, haven’t launched their orbital-class rockets yet. Avio, based in Italy, builds the now-operational Vega C rocket, and Germany’s Isar Aerospace launched its first Spectrum rocket earlier this year, but it failed to reach orbit. Avio’s selection replaces Arianespace, which was originally part of the Flight Ticket Initiative. Arianespace was previously responsible for marketing and sales for the Vega rocket, but ESA transferred its Flight Ticket Initiative eligibility to Avio following its split from Arianespace. (submitted by EllPeaTea)

Canadian rocket company ready for launch. NordSpace is preparing to launch its 6-meter tall Taiga rocket from Newfoundland, CBC reports. It will be a suborbital launch, meaning it won’t orbit Earth, but NordSpace says the launch will be the first of a Canadian commercial rocket from a Canadian commercial spaceport. The rocket is powered by a 3D-printed liquid-fueled engine and is a stepping stone to an orbital-class rocket NordSpace is developing called Tundra, scheduled to debut in 2027. The smaller Taiga rocket will launch partially fueled and fire its engine for approximately 60 seconds, according to NordSpace.

Newfoundland to space … The launch site, called the Atlantic Spaceport Complex, is located on the Atlantic coast near the town of St. Lawrence, Newfoundland. It will have two launch pads, one for suborbital flights like Taiga, and another for orbital missions by the Tundra rocket and other launch vehicles from US and European companies. The Taiga launch is scheduled no earlier than Friday morning at 5: 00 am EDT (09: 00 UTC). NordSpace says it is a “fully privately funded and managed initiative crucial for Canada to build a space launch capability that supports our security, economy, and sovereignty.” (submitted by Matthew P)

SpaceX’s reuse idea isn’t so dumb after all. A Falcon 9 rocket launched early Thursday from Kennedy Space Center, Florida, with another batch of Starlink Internet satellites. These types of missions launch multiple times per week, but this flight was special. The first stage of the Falcon 9, designated Booster 1067, launched and landed on drone ship in the Atlantic Ocean, completing its 30th flight to space and back, Ars reports. This is a new record for a reusable orbital-class booster stage and comes less than 24 hours after a preceding SpaceX launch from Florida that marked the 400th Falcon 9 landing on a drone ship since the first offshore recovery in 2016.

30 going for 40 … SpaceX is now aiming for at least 40 launches per Falcon 9 first stage, four times as many flights as the company’s original target for Falcon 9 booster reuse. Many people in the industry were skeptical about SpaceX’s approach to reuse. In the mid-2010s, both the European and Japanese space agencies were looking to develop their next generation of rockets. In both cases, Europe with the Ariane 6 and Japan with the H3, the space agencies opted for traditional, expendable rockets instead of pushing toward reuse. In the United States, the main competitor to SpaceX has historically been United Launch Alliance. Their reaction to SpaceX’s plan to reuse first stages a decade ago was dismissive. ULA dubbed its plan to reuse just the engine section of its Vulcan rocket “Smart Reuse” a few years ago. But ULA hasn’t even attempted to recover the engines from the Vulcan core stage yet, and reuse is still at least several years away.

Russia nears debut of Soyuz-5 rocket. In recent comments to the Russian state-run media service TASS, the chief of Roscosmos said the country’s newest rocket, the Soyuz-5, should take flight for the first time before the end of this year, Ars reports. “Yes, we are planning for December,” said Dmitry Bakanov, the director of Roscosmos, Russia’s main space corporation. “Everything is in place.” According to the report, translated for Ars by Rob Mitchell, the debut launch of Soyuz-5 will mark the first of several demonstration flights, with full operational service not expected to begin until 2028. It will launch from the Baikonur spaceport in Kazakhstan.

Breaking free of Ukraine … From an innovation standpoint, the Soyuz-5 vehicle does not stand out. It has been a decade in the making and is fully expendable, unlike a lot of newer medium-lift rockets coming online in the next several years. However, for Russia, this is an important advancement because it seeks to break some of the country’s dependency on Ukraine for launch technology. The new rocket is also named Irtysh, a river that flows through Russia and Kazakhstan. The rocket has been in development since 2016 and largely repurposes older technology. But for Russia, a key advantage is that it takes rocket elements formerly made in Ukraine and now manufactures them in Russia.

SpaceX launches mission to reboost the ISS. SpaceX completed its 33rd cargo delivery to the International Space Station (ISS) early Monday, when a Dragon supply ship glided to an automated docking with more than 5,000 pounds of scientific experiments and provisions for the lab’s seven-person crew, Ars reports. The resupply flight is part of the normal rotation of cargo and crew missions that keep the space station operating, but this one carries something new. What’s different with this mission is a new rocket pack mounted inside the Dragon spacecraft’s rear trunk section. In the coming weeks, SpaceX and NASA will use this first-of-its-kind propulsion system to begin boosting the altitude of the space station’s orbit.

A rocket on a rocket … SpaceX engineers installed two small Draco rocket engines in the trunk of the Dragon spacecraft. The thrusters have their own dedicated propellant tanks and will operate independently of 16 other Draco thrusters used to maneuver Dragon on its journey to the ISS. When NASA says it’s the right time, SpaceX controllers will command the Draco thrusters to ignite and gently accelerate the massive 450-ton space station. All told, the reboost kit can add about 20 mph, or 9 meters per second, to the space station’s already-dizzying speed. Maintaining the space station’s orbit has previously been the responsibility of Russia.

X-37B rides with SpaceX again. The US military’s reusable winged spaceship rocketed back into orbit from Florida on August 21 atop a SpaceX rocket, kicking off a mission that will, among other things, demonstrate how future spacecraft can navigate without relying on GPS signals, Ars reports. The core of the navigation experiment is what the Space Force calls the “world’s highest performing quantum inertial sensor ever used in space.” The spaceplane also hosts a laser inter-satellite communications demo. This is the eighth flight of the X-37B spaceplane, and the third to launch with SpaceX.

Back to LEO … This mission launched on a Falcon 9 rocket into low-Earth orbit (LEO) a few hundred miles above the Earth. This marks a return to LEO after the previous X-37B mission flew on a Falcon Heavy rocket into a much higher orbit. Many of the spaceplane’s payloads have been classified, but officials typically identify a handful of unclassified experiments flying on each X-37B mission. Past X-37B missions have also deployed small satellites into orbit before returning to Earth for a runway landing at Kennedy Space Center, Florida, or Vandenberg Space Force Base, California.

Rocket Lab cuts the ribbon on Neutron launch pad. Launch Complex 3, the Virginia Spaceport Authority’s Mid-Atlantic Regional Spaceport and home to Rocket Lab’s newest reusable rocket, Neutron, is now complete and celebrated its official opening Thursday, WAVY-TV reports. Officials said Launch Complex 3 is ready to bring the largest orbital launch capacity in the spaceport’s history with Neutron, Rocket Lab’s reusable launch vehicle, a medium-lift vehicle capable of launching 33,000 pounds (15 metric tons) to space for commercial constellations, national security, and interplanetary missions.

Not budging … “We’re trying as hard as we can to get this on the pad by the end of the year and get it away,” said Peter Beck, Rocket Lab’s founder and CEO. Beck is holding to his hope the Neutron rocket will be ready to fly in the next four months, but time is running out to make this a reality. The Neutron rocket will be Rocket Lab’s second orbital-class launch vehicle after the Electron, which can place payloads of several hundred pounds in orbit. Electron has a launch pad in Virginia, too, but most Electron rockets take off from New Zealand.

Starship completes a largely successful test flight. SpaceX launched the 10th test flight of the company’s Starship rocket Tuesday evening, sending the stainless steel spacecraft halfway around the world to an on-target splashdown in the Indian Ocean, Ars reports. The largely successful mission for the world’s largest rocket was an important milestone for SpaceX’s Starship program after months of repeated setbacks, including three disappointing test flights and a powerful explosion on the ground that destroyed the ship that engineers were originally readying for this launch.

Lessons to learn … For the first time, SpaceX engineers received data on the performance of the ship’s upgraded heat shield and control flaps during reentry back into the atmosphere. The three failed Starship test flights to start the year ended before the ship reached reentry. Elon Musk, SpaceX’s founder and CEO, has described developing a durable, reliable heat shield as the most pressing challenge for making Starship a fully and rapidly reusable rocket. But there were lessons to learn from Tuesday’s flight. A large section of the ship transitioned from its original silver color to a rusty hue of orange and brown by the time it reached the Indian Ocean. Officials didn’t immediately address this or say whether it was anticipated.

ULA recovering boosters, too. United Launch Alliance decided to pull four strap-on solid rocket boosters from the Atlantic Ocean after their use on the company’s most recent launch. Photos captured by Florida photographer Jerry Pike showed a solid rocket motor casing on a ship just off the coast of Cape Canaveral. Tory Bruno, ULA’s president and CEO, wrote on X that the booster was one of four flown on the USSF-106 mission earlier this month, which marked the third flight of ULA’s Vulcan rocket and the first with a US national security payload.

A GEM from the sea … The boosters, built by Northrop Grumman, are officially called Graphite Epoxy Motors, or GEMs. They jettison from the Vulcan rocket less than two minutes after liftoff and fall into the ocean. They’re not designed for reuse, but ULA decided to recover this set of four from the Atlantic for inspections. The company also raised from the sea two motors from the previous Vulcan launch last year after one of them suffered a nozzle failure during launch. Bruno wrote on X that “performance and ballistics were spot on” with all four boosters from the more recent USSF-106 mission, but that engineers decided to go ahead and recover them to close out a “nice data set” from inspections of now six recovered motors—two from last year and four this year.

Next three launches

Aug. 30: Falcon 9 | Starlink 17-7 | Vandenberg Space Force Base, California | 03: 09 UTC

Aug. 31: Falcon 9 | Starlink 10-14 | Cape Canaveral Space Force Station, Florida | 11: 15 UTC

Sept. 3: Falcon 9 | Starlink 17-8 | Vandenberg Space Force Base, California | 02: 33 UTC

Rocket Report: SpaceX achieved daily launch this week; ULA recovers booster Read More »

With recent Falcon 9 milestones, SpaceX vindicates its “dumb” approach to reuse

falcon 9, reuse, Smart, Space, spacex, ula, vulcan / Paul Patrick / August 28, 2025

As SpaceX’s Starship vehicle gathered all of the attention this week, the company’s workhorse Falcon 9 rocket continued to hit some impressive milestones.

Both occurred during relatively anonymous launches of the company’s Starlink satellites but are nonetheless notable because they underscore the value of first-stage reuse, which SpaceX has pioneered over the last decade.

The first milestone occurred on Wednesday morning with the launch of the Starlink 10-56 mission from Cape Canaveral, Florida. The first stage that launched these satellites, Booster 1096, was making its second launch and successfully landed on the Just Read the Instructions drone ship. Strikingly, this was the 400th time SpaceX has executed a drone ship landing.

Then, less than 24 hours later, another Falcon 9 rocket launched the Starlink 10-11 mission from a nearby launch pad at Kennedy Space Center. This first stage, Booster 1067, subsequently returned and landed on another drone ship, A Shortfall of Gravitas.

This is a special booster, having made its debut in June 2021 and launching a wide variety of missions, including two Crew Dragon vehicles to the International Space Station and some Galileo satellites for the European Union. On Thursday, the rocket made its 30th flight, the first time a Falcon 9 booster has hit that level of experience.

A decade in the making

These milestones came about one decade after SpaceX began to have some success with first-stage reuse.

The company first made a controlled entry of the Falcon 9 rocket’s first stage in September 2013, during the first flight of version 1.1 of the vehicle. This proved the viability of the concept of supersonic retropropulsion, which was, until that time, just theoretical.

This involves igniting the rocket’s nine Merlin engines while the vehicle is traveling faster than the speed of sound through the upper atmosphere, with external temperatures exceeding 1,000 degrees Fahrenheit. Due to the blunt force of this reentry, the engines in the outer ring of the rocket wanted to get splayed out, the company’s chief of propulsion at the time, Tom Mueller, told me for the book Reentry. Success on the first try seemed improbable.

He recalled watching this launch from Vandenberg Space Force Base in California and observing reentry as a camera aboard SpaceX founder Elon Musk’s private jet tracked the rocket. The first stage made it all the way down, intact.

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Under pressure after setbacks, SpaceX’s huge rocket finally goes the distance

Commercial space, elon musk, launch, Science, Space, spacex, Starbase, starship, starship flight 10, super heavy / Rejus Almole / August 27, 2025

The ship made it all the way through reentry, turned to a horizontal position to descend through scattered clouds, then relit three of its engines to flip back to a vertical orientation for the final braking maneuver before splashdown.

Things to improve on

There are several takeaways from Tuesday’s flight that will require some improvements to Starship, but these are more akin to what officials might expect from a rocket test program and not the catastrophic failures of the ship that occurred earlier this year.

One of the Super Heavy booster’s 33 engines prematurely shut down during ascent. This has happened before, and while it didn’t affect the booster’s overall performance, engineers will investigate the failure to try to improve the reliability of SpaceX’s Raptor engines, each of which can generate more than a half-million pounds of thrust.

Later in the flight, cameras pointed at one of the ship’s rear flaps showed structural damage to the back of the wing. It wasn’t clear what caused the damage, but super-heated plasma burned through part of the flap as the ship fell deeper into the atmosphere. Still, the flap remained largely intact and was able to help control the vehicle through reentry and splashdown.

“We’re kind of being mean to this Starship a little bit,” Huot said on SpaceX’s live webcast. “We’re really trying to put it through the paces and kind of poke on what some of its weak points are.”

Small chunks of debris were also visible peeling off the ship during reentry. The origin of the glowing debris wasn’t immediately clear, but it may have been parts of the ship’s heat shield tiles. On this flight, SpaceX tested several different tile designs, including ceramic and metallic materials, and one tile design that uses “active cooling” to help dissipate heat during reentry.

A bright flash inside the ship’s engine bay during reentry also appeared to damage the vehicle’s aft skirt, the stainless steel structure that encircles the rocket’s six main engines.

“That’s not what we want to see,” Huot said. “We just saw some of the aft skirt just take a hit. So we’ve got some visible damage on the aft skirt. We’re continuing to reenter, though. We are intentionally stressing the ship as we go through this, so it is not guaranteed to be a smooth ride down to the Indian Ocean.

“We’ve removed a bunch of tiles in kind of critical places across the vehicle, so seeing stuff like that is still valuable to us,” he said. “We are trying to kind of push this vehicle to the limits to learn what its limits are as we design our next version of Starship.”

Shana Diez, a Starship engineer at SpaceX, perhaps summed up Tuesday’s results best on X: “It’s not been an easy year but we finally got the reentry data that’s so critical to Starship. It feels good to be back!”

Under pressure after setbacks, SpaceX’s huge rocket finally goes the distance Read More »