Space

why-would-elon-musk-pivot-from-mars-to-the-moon-all-of-a-sudden?

Why would Elon Musk pivot from Mars to the Moon all of a sudden?

As more than 120 million people tuned in to the Super Bowl for kickoff on Sunday evening, SpaceX founder Elon Musk turned instead to his social network. There, he tapped out an extended message in which he revealed that SpaceX is pivoting from the settlement of Mars to building a “self-growing” city on the Moon.

“For those unaware, SpaceX has already shifted focus to building a self-growing city on the Moon, as we can potentially achieve that in less than 10 years, whereas Mars would take 20+ years,” Musk wrote, in part.

Elon Musk tweet at 6: 24 pm ET on Sunday.

Credit: X/Elon Musk

Elon Musk tweet at 6: 24 pm ET on Sunday. Credit: X/Elon Musk

This is simultaneously a jolting and practical decision coming from Musk.

Why it’s a jolting decision

A quarter of a century ago, Musk founded SpaceX with a single-minded goal: settling Mars. One of his longest-tenured employees, SpaceX President and Chief Operating Officer Gwynne Shotwell, described her very first interview with Musk in 2002 to me as borderline messianic.

“He was talking about Mars, his Mars Oasis project,” Shotwell said. “He wanted to do Mars Oasis, because he wanted people to see that life on Mars was doable, and we needed to go there.”

She was not alone in this description of her first interaction with Musk. The vision for SpaceX has not wavered. Even in the company’s newest, massive Starship rocket factory at the Starbase facility in South Texas—also known as the Gateway to Mars—there are reminders of the red planet everywhere. For example, the carpet inside Musk’s executive conference room is rust red, the same color as the surface of Mars.

In the last 25 years, Musk has gone from an obscure, modestly wealthy person to the richest human being ever, from a political moderate to chief supporter of Donald Trump; from a respected entrepreneur to, well, to a lot of things to a lot of people: world’s greatest industrialist/supervillain/savant/grifter-fraudster.

But one thing that has remained constant across the Muskverse is his commitment to “extending the light of human consciousness” and to the belief that the best place to begin humanity’s journey toward becoming a multi-planetary species was Mars.

Why would Elon Musk pivot from Mars to the Moon all of a sudden? Read More »

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Lawmakers ask what it would take to “store” the International Space Station


NASA shall evaluate the “viability of transferring the ISS to a safe orbital harbor” after retirement.

The International Space Station, with a crew of six onboard, is seen in silhouette as it transits the Moon at roughly five miles per second on Saturday, December 2, 2017, in Manchester Township, York County, Pennsylvania. Credit: NASA/Joel Kowsky

Members of the House Science, Space, and Technology Committee voted to approve a NASA authorization bill this week, advancing legislation chock full of policy guidelines meant to give lawmakers a voice in the space agency’s strategic direction.

The committee met to “mark up” the NASA Reauthorization Act of 2026, adding more than 40 amendments to the bill before a unanimous vote to refer the legislation to the full House of Representatives. Wednesday’s committee vote was just one of several steps needed for the bill to become law. It must pass a vote on the House floor, win approval from the Senate, and then go to the White House for President Donald Trump’s signature.

Ars has reported on one of the amendments, which would authorize NASA to take steps toward a “commercial” deep space program using privately owned rockets and spacecraft rather than vehicles owned by the government.

Another add-on to the authorization bill would require NASA to reassess whether to guide the International Space Station (ISS) toward a destructive atmospheric reentry after it is decommissioned in 2030. The space agency’s current plan is to deorbit the space station in 2031 over the Pacific Ocean, where debris that survives the scorching reentry will fall into a remote, unpopulated part of the sea.

No policy change—yet

The most recent NASA authorization act, passed in 2022, extended the US government’s support for the ISS program until 2030. The amendment tacked onto this year’s bill would not change the timeline for ending operations on the ISS, but it asks NASA to reconsider its decision about what to do with the complex after retirement.

The amendment would direct NASA to “carry out an engineering analysis to evaluate the technical, operational, and logistical viability of transferring the ISS to a safe orbital harbor and storing the ISS in such harbor after the end of the operational low-Earth orbit lifetime of the ISS to preserve the ISS for potential reuse and satisfy the objectives of NASA.”

Rep. George Whitesides (D-Calif.) submitted the amendment with cosponsorship from Rep. Nick Begich (R-Alaska). The proposal passed the committee through a voice vote with bipartisan support. Whitesides was a NASA chief of staff and longtime executive in the space industry before his election to the House last year.

“The International Space Station is one of the most complex engineering achievements in human history,” Whitesides said. “It represents more than three decades of international collaboration and investment by US taxpayers estimated at well over $100 billion. Current plans call for the station to be deorbited at the end of its service life in 2030. This amendment does not seek to change that policy. Instead, it asks a straightforward question: Before we permanently dispose of an asset of this magnitude, should we fully understand whether it’s viable to preserve it in orbit for potential use by future generations?”

In 2024, NASA awarded SpaceX a nearly $1 billion contract to develop a souped-up version of its Dragon spacecraft, which would be equipped with additional thrusters and propellant tanks to provide the impulse required to steer the space station toward a targeted reentry. The deorbit maneuvers will slow the station’s velocity enough for Earth’s gravity to pull it back into the atmosphere.

Artist’s illustration of SpaceX’s deorbit vehicle, based on the design of the company’s Dragon spacecraft. The modified spacecraft will have 46 Draco thrusters—30 for the deorbit maneuvers and 16 for attitude control.

Credit: SpaceX

Artist’s illustration of SpaceX’s deorbit vehicle, based on the design of the company’s Dragon spacecraft. The modified spacecraft will have 46 Draco thrusters—30 for the deorbit maneuvers and 16 for attitude control. Credit: SpaceX

The deorbit vehicle needs to slow the station’s speed by about 127 mph (57 meters per second), a tiny fraction of the spacecraft’s orbital velocity of more than 17,000 mph (7.7 kilometers per second). But the station mass is around 450 tons (400 metric tons), equivalent to two freight train locomotives, and measures about the length of a football field. Changing its speed by just 127 mph will consume about 10 tons (9 metric tons) of propellant, according to a NASA analysis released in 2024.

The analysis document shows that NASA considered alternatives to discarding the space station through reentry. One option NASA studied involved moving the station into a higher orbit. At its current altitude, roughly 260 miles (420 kilometers) above the Earth, the ISS would take one to two years to reenter the atmosphere due to aerodynamic drag if reboosts weren’t performed. NASA does not want the space station to make an uncontrolled reentry because of the risk of fatalities, injuries, and property damage from debris reaching the ground.

Boosting the space station’s orbit to somewhere between 400 and 420 miles (640 to 680 kilometers) would require a little more than twice the propellant (18.9 to 22.3 metric tons) needed for deorbit maneuvers, according to NASA’s analysis. At that altitude, without any additional boosts, NASA says the space station would likely remain in orbit for 100 years before succumbing to atmospheric drag and burning up. Going higher still, the space station could be placed in a 1,200-mile-high (2,000-kilometer) orbit, stable for more than 10,000 years, with about 146 tons (133 metric tons) of propellant.

There are two problems with sending the ISS to higher altitudes. One is that it would require the development of new propulsive and tanker vehicles that do not currently exist, according to NASA.

“While still currently in development, vehicles such as the SpaceX Starship are being designed to deliver significant amounts of cargo to these orbits,” NASA officials wrote in their analysis. “However, there are prohibitive engineering challenges with docking such a large vehicle to the space station and being able to use its thrusters while remaining within space station structural margins. Other vehicles would require both new certifications to fly at higher altitudes and multiple flights to deliver propellant.”

Going higher would also expose the space station to an increased risk of collision with space junk. The hazards from space debris are most severe at about 500 miles (800 kilometers), according to the engineers who conducted the analysis. “This means that the likelihood of an impact leaving station unable to maneuver or react to future threats, or even a significant impact resulting in complete fragmentation, is unacceptably high.”

This photo of the International Space Station was captured by a crew member on a Soyuz spacecraft.

Credit: NASA/Roscosmos

This photo of the International Space Station was captured by a crew member on a Soyuz spacecraft. Credit: NASA/Roscosmos

Whitesides’ office did not respond to Ars’ questions, but he said in Wednesday’s hearing that his amendment would direct NASA to further examine the costs and risks of putting the ISS in a higher orbit. The legislation “simply ensures that Congress receives a rigorous fact-based analysis so that future decisions involving the ISS are informed by scientific reality,” he said.

“At a time when we’re thinking seriously about sustainability in space, this amendment protects taxpayer investments and ensures that we fully understand our options before an irreplaceable asset is permanently retired.”

Rep. Brian Babin (R-Texas) said he “wholeheartedly” supports Whitesides’ amendment. Rep. Don Beyer (D-Va.) also endorsed it in brief remarks during Wednesday’s markup hearing.

“I just hate the thought that we would take something not just that we spent all the money on, but such an important part of human history, and dump it in the Pacific Ocean, never to be seen again, rather than preserving it,” Beyer said. “We don’t know whether we can do it in orbit, but if we can, we should really explore that hard.”

It’s not too late

Although NASA’s official policy is still to decommission the ISS in 2030, the door hasn’t closed on extending the lab’s operations into the next decade. There are some concerns about aging hardware, but NASA said in 2024 that engineers have “high confidence” that the primary structure of the station could support operations beyond 2030.

The oldest segments of the station have been in orbit since 1998, undergoing day-night thermal cycles every 45 minutes as they orbit the planet. The structural stability of the Russian section of the outpost is also in question. Russian engineers traced a small but persistent air leak to microscopic structural cracks in one Russian module, but cosmonauts were able to seal the cracks, and air pressure in the area is “holding steady,” a NASA spokesperson said last month.

One of the lab’s most critical elements, its power-generation system, is in good shape after NASA recently installed upgraded solar arrays outside the station. Another set of upgraded solar panels is scheduled to arrive at the station later this year, just a few years before the complex is to be retired.

NASA’s strategy is to decommission the ISS and turn to the commercial sector for new, cheaper, smaller space stations to continue conducting research in low-Earth orbit. This would allow NASA to buy time on a commercial space station for its astronauts and experiments, while the agency’s human spaceflight program focuses on missions to the Moon.

That’s a fine plan, but NASA’s program to support commercial space stations, known as Commercial LEO Destinations (CLDs), is going nowhere fast. Supporters of the CLD program say it has been underfunded from the start, and the strategy became more muddled last year when Sean Duffy, then NASA’s acting administrator, changed the agency’s rules for private space stations. NASA Administrator Jared Isaacman is reviewing the changes, and the requirements for stations may shift again.

NASA spends more than $3 billion per year for ISS operations, including crew and cargo transportation services to staff and support the outpost. NASA’s budget for deep space exploration in fiscal year 2026 is nearly $7.8 billion. NASA is receiving $273 million for the Commercial LEO Destinations program this year, with the money to be divided among multiple companies.

Any private space station will need to sustain itself, at least partially, on commercial business to be profitable. Developers have raised concerns that they will be unable to attract sufficient commercial business—in areas like pharmaceutical research, tech demos, or space tourism—as long as the government-funded ISS is still operating.

One of the companies vying for NASA funding is Vast, which plans to launch its first single-module private outpost to orbit in early 2027. This first station, named Haven-1, will accommodate crews for short-duration temporary stays. Vast plans to follow Haven-1 with a much larger multi-module station capable of supporting a permanent crew.

Max Haot, Vast’s CEO, does not seem bothered by lawmakers’ efforts to revisit the question of deorbiting the International Space Station.

“The amendment directs NASA to study the feasibility of something other than deorbit and disposal after ISS end of life, which is separate from the issue of retiring the space station and transitioning to commercial partners,” Haot said in a statement to Ars. “We support President Trump’s directive in national space policy to replace the ISS by 2030, with commercial partners who can ensure there is no gap in America’s continuous human presence in space.”

The other top contenders in the commercial space station arena are Starlab, a joint venture between Voyager Space and Airbus, the Blue Origin-led Orbital Reef project, and Axiom Space. Voyager and Blue Origin did not respond to requests for comment from Ars, and an Axiom spokesperson was unable to provide a statement by publication time.

Photo of Stephen Clark

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.

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NASA stage show explores “outer” outer space with Henson’s Fraggles

(Asked why Traveling Matt would not have recognized the Moon from his time in outer space, Tartaglia said that perhaps he did see it, but only as a thin crescent, and did not equate the two. Or maybe it was that he was “so forward-driven” that he never bothered to look up.)

A postcard with a picture of a “cookie” helps lead Gobo, Red, and Uncle Traveling Matt to learning about the moon and how NASA’s Exploration Ground Systems team is enabling astronaut missions to the lunar surface.

Credit: Kennedy Space Center Visitor Complex

A postcard with a picture of a “cookie” helps lead Gobo, Red, and Uncle Traveling Matt to learning about the moon and how NASA’s Exploration Ground Systems team is enabling astronaut missions to the lunar surface. Credit: Kennedy Space Center Visitor Complex

As Gobo, Red, and Traveling Matt step through the Fraggle hole onto the stage at Kennedy, they are no longer hand-operated puppets but full-body “walk-around” characters. And to remain to scale, that meant up-scaling another character, too.

“When we scaled up the Fraggles to be costume-size, so they could dance and move without being encumbered by being just puppets, we realized that one of the Doozers would have to become puppet-size. That was really fun to do because the real Doozers are six inches tall, and they are animatronic. They’re teeny, and now they get to have their glory as hand puppets,” said Tartaglia, who also voices Gobo for the show and performs as him when in puppet size.

Down at Fraggle Rock

When NASA first contacted the Jim Henson Company about bringing the Fraggles to the Kennedy Space Center Visitor Complex, Tartaglia and his team knew it would be cool. And once they decided to have Uncle Traveling Matt be the show’s central character, the plot came together fairly quickly.

“He’s a great character to learn from because he is so oblivious, and he thinks he knows everything, and he really doesn’t. So he’s a great character to use as a bridge for the audience to be able to learn all these awesome facts and figures about NASA,” said Tartaglia.

He and his team also came to appreciate how much Fraggle Rock shares with the space agency, its activities, and goals.

“We all started talking and realized really quickly that Fraggles and Doozers and the whole message of Fraggle Rock—especially about Uncle Matt—is about exploring new worlds, making discoveries, and the whole fragile ecosystem. All of these different worlds need each other and want to work to learn more about each other. It sounded all very aligned with what NASA does and the whole purpose of space exploration,” said Tartaglia.

“So our two worlds that on paper wouldn’t seem connected, made a lot of sense to connect,” he said.

NASA stage show explores “outer” outer space with Henson’s Fraggles Read More »

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Rocket Report: SpaceX probes upper stage malfunction; Starship testing resumes


Amazon has booked 10 more launches with SpaceX, citing a “near-term shortage in launch capacity.”

The top of SpaceX’s next Super Heavy booster, designated Booster 19, as the rocket undergoes testing at Starbase, Texas. The Rio Grande River is visible in the background. Credit: SpaceX

Welcome to Edition 8.28 of the Rocket Report! The big news in rocketry this week was that NASA still hasn’t solved the problem with hydrogen leaks on the Space Launch System. The problem caused months of delays before the first SLS launch in 2022, and the fuel leaks cropped up again Monday during a fueling test on NASA’s second SLS rocket. It is a continuing problem, and NASA’s sparse SLS launch rate makes every countdown an experiment, as my colleague Eric Berger wrote this week. NASA will conduct another fueling test in the coming weeks after troubleshooting the rocket’s leaky fueling line, but the launch of the Artemis II mission is off until March.

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.

Blue Origin “pauses” New Shepard flights. Blue Origin has “paused” its New Shepard program for the next two years, a move that likely signals a permanent end to the suborbital space tourism initiative, Ars reports. The small rocket and capsule have been flying since April 2015 and have combined to make 38 launches, all but one of which were successful, and 36 landings. In its existence, the New Shepard program flew 98 people to space, however briefly, and launched more than 200 scientific and research payloads into the microgravity environment.

Moon first… So why is Blue Origin, founded by Jeff Bezos more than a quarter of a century ago, ending the company’s longest-running program? “We will redirect our people and resources toward further acceleration of our human lunar capabilities inclusive of New Glenn,” wrote the company’s chief executive, Dave Limp, in an internal email on January 30. “We have an extraordinary opportunity to be a part of our nation’s goal of returning to the Moon and establishing a permanent, sustained lunar presence.” The cancellation came, generally, as a surprise to Blue Origin employees. The company flew its most recent mission a week prior to the announcement, launching six people into space.

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Firefly nears return to flight. Firefly Aerospace is preparing to launch its next 1-ton-class Alpha rocket later this month from Vandenberg Space Force Base, California. The Texas-based company announced last month that it shipped the Alpha rocket to the California spaceport, and a follow-up post on social media on January 29 showed a video of the rocket rolling out to its launch pad for testing. “Alpha is vertical on the pad and getting ready for our static fire ahead of the Stairway to Seven mission!” Firefly wrote on X.

Getting back on track... This is an important mission for Firefly’s Alpha rocket program. On the most recent Alpha flight last April, the rocket’s first stage exploded in flight, moments after separation from the second stage. The blast wave damaged the upper stage engine, preventing it from reaching orbit with a small commercial tech demo satellite. Then, in September, the booster stage for the next Alpha launch was destroyed during a preflight test in Texas. Firefly says the upcoming mission is purely a test flight and won’t fly with any customer payloads. The company announced that an upgraded “Block II” version of the Alpha rocket will debut on the subsequent mission.

China to test next-gen crew capsule. China is gearing up for an important test of its new Mengzhou spacecraft, perhaps as soon as February 11, according to airspace warning notices issued around the Wenchang spaceport on Hainan Island. Images from public viewing sites around the launch site showed a test model of the Mengzhou spacecraft being lifted atop a booster stage this week. The flight next week is expected to include an in-flight test of the capsule’s launch abort system. Mengzhou is China’s next-generation crew spacecraft for human flights to the Moon. It will also replace China’s Shenzhou crew spacecraft used for flights to the Tiangong space station in low-Earth orbit.

Proceeding apace... The in-flight abort test follows a pad abort test of the Mengzhou spacecraft last year as China marches toward the program’s first orbital test flight. The booster stage for the in-flight abort test is a subscale version of China’s new Long March 10 rocket, the partially reusable human-rated launcher under development for the country’s lunar program. Therefore, next week’s milestone flight will serve as an important test of not only the Mengzhou spacecraft but also its rocket.

SpaceX confirms upper stage malfunction. SpaceX kicked off the month of February with a Monday morning Falcon 9 rocket launch from Vandenberg Space Force Base in California. However, the rocket experienced an anomaly near the end of the mission, Spaceflight Now reports. The rocket deployed its payload of 25 Starlink satellites as planned, but SpaceX said the Falcon 9’s second stage “experienced an off-nominal condition” during preparation for an engine firing to steer back into the atmosphere for a guided, destructive reentry. The rocket remained in a low-altitude orbit and made an unguided reentry later in the week.

Launches temporarily on hold... “Teams are reviewing data to determine root cause and corrective actions before returning to flight,” SpaceX said in a statement. A Starlink launch from Florida originally planned for this week is now on hold. SpaceX returned the Falcon 9 rocket’s payload fairing, containing the Starlink payloads, from the launch pad back to the hangar at Kennedy Space Center to wait for the next launch opportunity. SpaceX’s Falcon 9 team in Florida is now focusing on preparations for launch of the Crew-12 mission to the International Space Station, targeted for no earlier than February 11. The schedule for Crew-12 will hinge on how quickly SpaceX can complete the investigation into Monday’s upper stage malfunction. (submitted by EllPeaTea)

Amazon’s new booking with SpaceX. Amazon has purchased an additional 10 Falcon 9 launches from SpaceX as part of its efforts to accelerate deployment of its broadband satellite constellation, Space News reports. The deal, which neither Amazon nor SpaceX previously announced, was disclosed in an Amazon filing with the Federal Communications Commission on January 30, seeking an extension of a July deadline to deploy half of its Amazon Leo constellation. Amazon has launched only 180 satellites of its planned 3,232-satellite constellation, rendering the July deadline unattainable. Amazon asked the FCC to extend the July deadline by two years or waive it entirely, but did not request an extension to the 2029 deadline for full deployment of the constellation.

“Near-term shortage in launch capacity”… In the filing with the FCC, Amazon said it faces a “near-term shortage of launch capacity” and is securing additional launch options “wherever available.” That effort includes working with SpaceX, whose Starlink constellation directly competes with Amazon Leo. Amazon bypassed SpaceX entirely when it made its initial orders for more than 80 Amazon Leo launches with United Launch Alliance, Arianespace, and Blue Origin, owned by Amazon founder Jeff Bezos. But Amazon later reserved three launches with SpaceX that flew last year and has now added 10 more SpaceX launches to its manifest. So far, Amazon has only launched satellites on ULA’s soon-to-retire Atlas V rocket and SpaceX’s Falcon 9. Amazon has not started flying on the new Vulcan, Ariane 6, or New Glenn rockets, which comprise the bulk of the constellation’s launch bookings. That could change next week with the first launch of Amazon Leo satellites on Europe’s Ariane 6 rocket. (submitted by EllPeaTea)

China launches satellite for Algeria. Algeria’s Alsat-3B mission, an Earth observation satellite developed in collaboration with China, launched aboard a Chinese Long March 2C rocket on January 30, Connecting Africa reports. Alsat-3B is the twin of Alsat-3A, which launched from China earlier in the month. Algeria’s government signed a contract with China in 2023 covering the development and launch of the two Alsat-3 satellites. Both satellites are designed to provide high‑resolution Earth observation imagery, enhancing Algeria’s geospatial intelligence capabilities.

Belt, road, and orbitIn a joint statement, Chinese President Xi Jinping said the Algerian remote-sensing satellite project is another successful example of China-Algeria aerospace cooperation and an important demonstration of the two nations’ comprehensive strategic partnership. China has inked similar space-related partnerships to produce and launch satellites for other African nations, including Egypt, Ethiopia, Nigeria, and Sudan.

Soyuz-5 launch set for March. Just a few months ago, Russia aimed to launch the first flight of the new Soyuz-5 medium-lift rocket before the end of 2025. Now, the Soyuz-5’s debut test flight is targeted for the end of March, Aviation Week & Space Technology reports. Dmitry Baranov, the deputy head of Roscosmos, announced the new schedule at a scientific conference in Moscow. The mission from the Baikonur Cosmodrome in Kazakhstan would mark the first flight of a new Russian rocket since 2014.

A reactionary rocketArs has reported on the Soyuz-5 project before. While the rocket will use a new overall design, the underlying technology is not all that new. The Soyuz-5, also named Irtysh, is intended to be a replacement for the Zenit rocket, a medium-lift launcher developed in the final years before the fall of the Soviet Union. The Zenit rocket’s main stages were manufactured in Ukraine, and tensions between Russia and Ukraine spelled the end of the Zenit program even before Russia invaded its neighbor in 2022. The Soyuz-5 uses a modified version of the RD-171 engine that has flown since the 1980s. This new RD-171 design uses all Russian components. The upper stage engine is based on the same design flown on Russia’s workhorse Soyuz-2 rocket.

Fueling test reveals leaks on SLS rocket. The launch of NASA’s Artemis II mission, the first flight of astronauts to the Moon in more than 53 years, will have to wait another month after a fueling test on Monday uncovered hydrogen leaks in the connection between the rocket and its launch platform at Kennedy Space Center in Florida, Ars reports. The practice countdown was designed to identify problems and provide NASA an opportunity to fix them before launch. Most importantly, the test revealed NASA still has not fully resolved recurring hydrogen leaks that delayed the launch of the unpiloted Artemis I test flight by several months in 2022. Artemis I finally launched successfully after engineers revised their hydrogen loading procedures to overcome the leak.

Hardware poor… Now, the second Space Launch System (SLS) rocket is on the cusp of launching a crew for the first time. Even as it reaches maturity, the rocket is going nowhere fast. It has been more than three years since NASA discovered leaks on the first SLS rocket. The rocket alone costs more than $2 billion to build. The program is hardware poor, leaving NASA unable to build a test model that might have been used to troubleshoot and resolve the hydrogen leaks before the agency proceeded into the Artemis II launch campaign. “Every SLS rocket is a work of art, every launch campaign an adventure, every mission subject to excessive delays. It’s definitely not ideal,” Ars reported in a story examining this problem.

SpaceX, meet xAI. SpaceX has formally acquired another one of Elon Musk’s companies, xAi, Ars reports. The merging of what is arguably Musk’s most successful company, SpaceX, with the more speculative xAI venture is a risk. Founded in 2023, xAI’s main products are the generative AI chatbot Grok and the social media site X, formerly known as Twitter. The company aims to compete with OpenAI and other artificial intelligence firms. However, Grok has been controversial, including the sexualization of women and children through AI-generated images, as has Musk’s management of Twitter.

Lots of assumptions… There can be no question that the merger of SpaceX—the world’s premier spaceflight company—and the artificial intelligence firm offers potential strategic advances. With this merger, Musk plans to use SpaceX’s deep expertise in rapid launch and satellite manufacturing and management to deploy a constellation of up to 1 million orbital data centers, providing the backbone of computing power needed to support xAI’s operations. All of this is predicated on several assumptions, including that AI is not a bubble, orbital data centers are cost-competitive compared to ground-based data centers, and that compute is the essential roadblock that will unlock widespread adoption of AI in society. Speculative, indeed, but only SpaceX has a rocket that might one day be able to realistically deploy a million satellites.

Starship testing resumes. The enormous rocket we’re talking about, of course, is SpaceX’s Starship. Ground teams at Starbase, Texas, have rolled the Super Heavy booster for SpaceX’s next Starship flight to a test stand for a series of checkouts ahead of the flight, currently slated for sometime in March. This will be the first launch of SpaceX’s upgraded “Block 3” Starship, with improvements aimed at making the rocket more reliable following several setbacks with Starship Block 2 last year.

Frosty night on the border… This is the second time a Block 3 booster has made the trip to the test stand at Starbase, located just north of the US-Mexico border. Booster 18 suffered a structural failure at the test site in November, forcing SpaceX to scrap it and complete the next rocket in line, Booster 19. On Wednesday night, SpaceX put Booster 19 through cryogenic proof testing, clearing a key milestone on the path to launch. The next flight will likely follow a similar profile as previous Starship missions, with a suborbital arc carrying the ship from its South Texas launch base to a splashdown in the Indian Ocean. If successful, the test will pave the way for bigger tests to come, including an in-space refueling demo and the catch and recovery of a Starship vehicle returning from space.

Next three launches

Feb. 7: Long March 2F | Chinese spaceplane? | Jiuquan Satellite Launch Center, China | 03: 55 UTC

Feb. 7: Falcon 9 | Starlink 17-33 | Vandenberg Space Force Base, California | 17: 05 UTC

Feb. 11: Falcon 9 | Crew-12 | Cape Canaveral Space Force Station, Florida | 11: 01 UTC

Photo of Stephen Clark

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: SpaceX probes upper stage malfunction; Starship testing resumes Read More »

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To reuse or not reuse—the eternal debate of New Glenn’s second stage reignites

Engineers at Blue Origin have been grappling with a seemingly eternal debate that involves the New Glenn rocket and the economics of flying it.

The debate goes back at least 15 years, to the early discussions around the design of the heavy lift rocket. The first stage, of course, would be fully reusable. But what about the upper stage of New Glenn, powered by two large BE-3U engines?

Around the same time, in the early 2010s, SpaceX was also trading the economics of reusing the second stage of its Falcon 9 rocket. Eventually SpaceX founder Elon Musk abandoned his goal of a fully reusable Falcon 9, choosing instead to recover payload fairings and push down manufacturing costs of the upper stage as much as possible. This strategy worked, as SpaceX has lowered its internal launch costs of a Falcon 9, even with a new second stage, to about $15 million. The company is now focused on making the larger Starship rocket fully reusable.

New Glenn is quite a bit larger than the Falcon 9 vehicle, 98 meters in height compared to 70 meters, and with a 7-meter diameter compared to the Falcon 9’s 3.7 meters; but it is also smaller than Starship. Accordingly Blue Origin has struggled with whether to reuse the New Glenn upper stage or to seek to ruthlessly cut its manufacturing costs.

Ebbs and flows of the debate

Over the years, this internal debate has waxed and waned.

A little more than five years ago, Blue Origin kicked off a project to develop a reusable stainless-steel upper stage known as “Project Jarvis.” This initiative was later abandoned. In the run-up to the first launch of New Glenn in early 2025, both the company’s founder, Jeff Bezos, and CEO, Dave Limp, told Ars in an interview that they were continuing to trade the options on New Glenn’s upper stage, known as GS2.

However, a new job posting suggests the debate may be swinging back toward reusing GS2. The job, for a director of “Reusable Upper Stage Development,” was posted Thursday by the company.

To reuse or not reuse—the eternal debate of New Glenn’s second stage reignites Read More »

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US House takes first step toward creating “commercial” deep space program

A US House committee with oversight of NASA unanimously passed a “reauthorization” act for the space agency on Wednesday. The legislation must still be approved by the full House before being sent to the Senate, which may take up consideration later this month.

Congress passes such reauthorization bills every couple of years, providing the space agency with a general sense of the direction legislators want to see NASA go. They are distinct from appropriations bills, which provide actual funding for specific programs, but nonetheless play an important role in establishing space policy.

There weren’t any huge surprises in the legislation, but there were some interesting amendments. Most notably among these was the Amendment No. 01, offered by the chair of the Committee on Science, Space, and Technology, Rep. Brian Babin (R-Texas), as well as its ranking member, Zoe Lofgren (D-Calif.), and three other legislators.

NASA can consider Artemis alternatives

The amendment concerns acquisition powers bestowed upon NASA by Congress, stating in part: “The Administrator may, subject to appropriations, procure from United States commercial providers operational services to carry cargo and crew safely, reliably, and affordably to and from deep space destinations, including the Moon and Mars.”

That language is fairly general in nature, but the intent seems clear. NASA’s initial missions to the Moon, through Artemis V, have a clearly defined architecture: They must use the Space Launch System rocket, Orion spacecraft, and a lander built by either SpaceX or Blue Origin to complete lunar landings.

But after that? With this amendment, Congress appears to be opening the aperture to commercial companies. That is to say, if SpaceX wanted to bid an end-to-end Starship lunar mission, it could; or if Blue Origin wanted to launch Orion on New Glenn, that is also an option. The language is generalized enough, not specifying “launch” but rather “transportation,” that in-space companies such as Impulse Space could also get creative. Essentially, Congress is telling the US industry that if it is ready to step up, NASA should allow it to bid on lunar cargo and crew missions.

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Russian spy satellites have intercepted EU communications satellites

Those thrusters could also be used to knock satellites out of alignment or even cause them to crash back to Earth or drift into space.

Intelligence gathered by Luch 1 and 2 could also help Russia coordinate less overt attacks on Western interests. Monitoring other satellites can reveal who is using them and where—information that could later be exploited for targeted ground-based jamming or hacking operations.

The Luch vehicles were “maneuvring about and parking themselves close to geostationary satellites, often for many months at a time,” said Belinda Marchand, chief science officer at Slingshot Aerospace, a US-based company that tracks objects in space using ground-based sensors and artificial intelligence.

She added that Luch 2 was currently “in proximity” to Intelsat 39, a large geostationary satellite that services Europe and Africa.

Since its launch in 2023, Luch-2 has hovered near at least 17 other geostationary satellites above Europe serving both commercial and government purposes, Slingshot data shows.

“They have visited the same families, the same operators—so you can deduce that they have a specific purpose or interest,” said Norbert Pouzin, senior orbital analyst at Aldoria, a French satellite tracking company that has also shadowed the Luch satellites. “These are all Nato-based operators.”

“Even if they cannot decrypt messages, they can still extract a lot of information… they can map how a satellite is being used, work out the location of ground terminals, for example,” he added.

Pouzin also said that Russia now seemed to be ramping up its reconnaissance activity in space, launching two new satellites last year named Cosmos 2589 and Cosmos 2590. The vehicles appear to have similarly maneuvrable capabilities to Luch-1 and Luch-2.

Cosmos 2589 is now on its way to the same range as geostationary satellites, which orbit 35,000 km above Earth, Pouzin said.

But Luch-1 may no longer be functional. On January 30, Earth telescopes observed what appeared to be a plume of gas coming from the satellite. Shortly after, it appeared to at least partially fragment.

“It looks like it began with something to do with the propulsion,” said Marchand, adding that afterwards there “was certainly a fragmentation,” and the satellite was “still tumbling.”

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NASA finally acknowledges the elephant in the room with the SLS rocket


“You know, you’re right, the flight rate—three years is a long time.”

The Artemis II mission is not going to the Moon this month. Credit: NASA

The Space Launch System rocket program is now a decade and a half old, and it continues to be dominated by two unfortunate traits: It is expensive, and it is slow.

The massive rocket and its convoluted ground systems, so necessary to baby and cajole the booster’s prickly hydrogen propellant on board, have cost US taxpayers in excess of $30 billion to date. And even as it reaches maturity, the rocket is going nowhere fast.

You remember the last time NASA tried to launch the world’s largest orange rocket, right? The space agency rolled the Space Launch System out of its hangar in March 2022. The first, second, and third attempts at a wet dress rehearsal—elaborate fueling tests—were scrubbed. The SLS rocket was slowly rolled back to its hangar for work in April before returning to the pad in June.

The fourth fueling test also ended early but this time reached to within 29 seconds of when the engines would ignite. This was not all the way to the planned T-9.3 seconds, a previously established gate to launch the vehicle. Nevertheless mission managers had evidently had enough of failed fueling tests. Accordingly, they proceeded into final launch preparations.

The first launch attempt (effectively the fifth wet-dress test), in late August, was scrubbed due to hydrogen leaks and other problems. A second attempt, a week later, also succumbed to hydrogen leaks. Finally, on the next attempt, and seventh overall try at fully fueling and nursing this vehicle through a countdown, the Space Launch System rocket actually took off. After doing so, it flew splendidly.

That was November 16, 2022. More than three years ago. You might think that over the course of the extended interval since then, and after the excruciating pain of spending nearly an entire year conducting fueling tests to try to lift the massive rocket off the pad, some of the smartest engineers in the world, the fine men and women at NASA, would have dug into and solved the leak issues.

You would be wrong.

The second go-round also does not unfold smoothly

On Monday, after rolling the SLS rocket to be used for the Artemis II mission to the pad in January, NASA attempted its first wet-dress test with this new vehicle. At one of the main interfaces where liquid hydrogen enters the vehicle, a leak developed, not dissimilar to problems that occurred with the Artemis I rocket three years ago.

NASA has developed several ploys to mitigate the leak. These include varying the rate of hydrogen, which is very cold, flowing into the vehicle. At times they also stopped this flow, hoping the seals at the interface between the ground equipment and the rocket would warm up and “re-seat,” thereby halting the leaks. It worked—sort of. After several hours of troubleshooting, the vehicle was fully loaded. Finally, running about four hours late on their timeline, the dogged countdown team at Kennedy Space Center pushed toward the last stages of the countdown.

However, at this critical time, the liquid hydrogen leak rate spiked once again. This led to an automatic abort of the test a little before T-5 minutes. And so ended NASA’s hopes of launching the much-anticipated Artemis II mission, sending four astronauts around the Moon, in February. NASA will now attempt to launch the vehicle no earlier than March following more wet-dress attempts in the interim.

In a news conference on Tuesday afternoon, NASA officials were asked why they had not solved a problem that was so nettlesome during the Artemis I launch campaign.

“After Artemis I, with the challenges we had with the leaks, we took a pretty aggressive approach to do some component-level testing with some of these valves and the seals, and try to understand their behavior,” said John Honeycutt, chair of the Artemis II Mission Management Team. “And so we got a good handle on that relative to how we install the flight-side and the ground-side interface. But on the ground, we’re pretty limited in how much realism we can put into the test. We try to test like we fly, but this interface is a very complex interface. When you’re dealing with hydrogen, it’s a small molecule. It’s highly energetic. We like it for that reason. And we do the best we can.”

If NASA were really going to do the best it could with this rocket, there were options in the last three years. It is common in commercial rocketry to build one or more “test” tanks to both stress the hardware and ensure its compatibility with ground systems through an extensive test campaign. However, SLS hardware is extraordinarily expensive. A single rocket costs in excess of $2 billion, so the program is hardware-poor. Moreover, tanking tests might have damaged the launch tower, which itself cost more than $1 billion. As far as I know, there was never any serious discussion of building a test tank.

Hardware scarcity, due to cost, is but one of several problems with the SLS rocket architecture. Probably the biggest one is its extremely low flight rate, which makes every fueling and launch opportunity an experimental rather than operational procedure. This has been pointed out to NASA, and the rocket’s benefactors in Congress, for more than a decade. A rocket that is so expensive it only flies rarely will have super-high operating costs and ever-present safety concerns precisely because it flies so infrequently.

Acknowledging the low flight rate issue

Until this week, NASA had largely ignored these concerns, at least in public. However, in a stunning admission, NASA’s new administrator, Jared Isaacman, acknowledged the flight-rate issue after Monday’s wet-dress rehearsal test failed to reach a successful conclusion. “The flight rate is the lowest of any NASA-designed vehicle, and that should be a topic of discussion,” he said as part of a longer post about the test on social media.

The reality, which Isaacman knows full well, and which almost everyone else in the industry recognizes, is that the SLS rocket is dead hardware walking. The Trump administration would like to fly the rocket just two more times, culminating in the Artemis III human landing on the Moon. Congress has passed legislation mandating a fourth and fifth launch of the SLS vehicle.

However, one gets the sense that this battle is not yet fully formed, and the outcome will depend on hiccups like Monday’s aborted test; the ongoing performance of the rocket in flight; and how quickly SpaceX’s Starship and Blue Origin’s New Glenn vehicle make advancements toward reliability. Both of these private rockets are moving at light speed relative to NASA’s Slow Launch System.

During the news conference, I asked about this low flight rate and the challenge of managing a complex rocket that will never be more than anything but an experimental system. The answer from NASA’s top civil servant, Amit Kshatriya, was eye-opening.

“You know, you’re right, the flight rate—three years is a long time between the first and second,” NASA’s associate administrator said. “It is going to be experimental, because of going to the Moon in this configuration, with the energies we’re dealing with. And every time we do it these are very bespoke components, they’re in many cases made by incredible craftsmen. … It’s the first time this particular machine has borne witness to cryogens, and how it breathes, and how it vents, and how it wants to leak is something we have to characterize. And so every time we do it, we’re going to have to do that separately.”

So there you have it. Every SLS rocket is a work of art, every launch campaign an adventure, every mission subject to excessive delays. It’s definitely not ideal.

Photo of Eric Berger

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

NASA finally acknowledges the elephant in the room with the SLS rocket Read More »

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SpaceX acquires xAI, plans to launch a massive satellite constellation to power it


We’re going to need more X’s

“This marks not just the next chapter, but the next book in SpaceX and xAI’s mission.”

SpaceX’s Starship and Super Heavy booster lift off from Starbase, Texas, in March 2025. Credit: SpaceX

SpaceX has formally acquired another one of Elon Musk’s companies, xAi, the space company announced on Monday afternoon.

“SpaceX has acquired xAI to form the most ambitious, vertically-integrated innovation engine on (and off) Earth, with AI, rockets, space-based internet, direct-to-mobile device communications and the world’s foremost real-time information and free speech platform,” the company said. “This marks not just the next chapter, but the next book in SpaceX and xAI’s mission: scaling to make a sentient sun to understand the Universe and extend the light of consciousness to the stars!”

The merging of what is arguably Musk’s most successful company, SpaceX, with the more speculative xAI venture is a risk. Founded in 2023, xAI’s main products are the generative AI chatbot, Grok, and the social media site X, formerly known as Twitter. The company aims to compete with OpenAI and other artificial intelligence firms. However, Grok has been controversial, including the sexualization of women and children through AI-generated images, as has Musk’s management of Twitter.

Vertically integrating AI and space

There can be no question that the merger of SpaceX—the world’s premiere spaceflight company—and the artificial intelligence firm offer potential strategic advances. Musk strongly believes that artificial intelligence is central to humanity’s future and wants to be among those leading in its development. With this merger, he plans to use SpaceX’s deep expertise in rapid launch and satellite manufacturing and management to deploy a constellation of up to 1 million orbital data centers. This will provide the backbone of computing power needed to support xAI’s operations.

Musk’s plan for the merged companies is predicated on several assumptions, including that AI is not a bubble, but rather a technology that will be fully embraced in the future; that orbital data centers are cost-competitive compared to ground-based data centers; and that compute is the essential roadblock that must be solved for widespread adoption of AI by society.

If these assumptions are true, the merged SpaceX-xAI company holds a powerful position. It could potentially own a full stack of capabilities, from launch to orbital bandwidth to frontier AI models, and with Starlink Internet, it could provide AI on demand, anywhere in the world, to any mobile device.

SpaceX already has the world’s workhorse reusable rocket with the Falcon 9. It can presently deliver about 20 tons to low-Earth orbit for an internal cost of $15 million, compared to more than four or five times that on the open market. Moreover, SpaceX is working toward fully reusable super heavy lift rocket with its Starship vehicle.

The privately held company also operates more satellites, about 9,600, than any other country or company in the world by a factor of 10. It has extensive operations not just in deploying but also in operating this constellation over the last decade. This is not a simple capability.

“I would say there have been as many engineering advancements in orbital safety and collision prevention in the last 10 years as there have been advances in rocketry, and that may have gone unnoticed,” said Brian Weeden, director of civil and commercial policy at The Aerospace Corporation, in an interview.

“Happening really fast”

In an email to SpaceX employees on Monday, Musk said Starship will begin launching V3 Starlink satellites into orbit this year, as well as the next generation of direct-to-mobile satellites. The launches, he said, will be a “forcing function” to improve the performance of Starship, making it more rapidly reusable for data center deployment.

“The sheer number of satellites that will be needed for space-based data centers will push Starship to even greater heights,” Musk wrote. “With launches every hour carrying 200 tons per flight, Starship will deliver millions of tons to orbit and beyond per year, enabling an exciting future where humanity is out exploring amongst the stars.”

Musk told employees that launching 1 million tons per year of satellites, generating 100 kW of compute power per ton, would add 100 gigawatts of AI compute capacity annually, “with no ongoing operational or maintenance needs.” Ultimately, Musk believes there is a path to launching 1 TW/year from Earth.

“My estimate is that within 2 to 3 years, the lowest cost way to generate AI compute will be in space,” Musk wrote. “This cost-efficiency alone will enable innovative companies to forge ahead in training their AI models and processing data at unprecedented speeds and scales, accelerating breakthroughs in our understanding of physics and invention of technologies to benefit humanity.”

Musk is clearly bullish on the future of AI and on space’s potential to address the voracious power needs of AI data centers. Many people in the AI industry speculate that artificial intelligence is likely to go through serious and sustained growing pains, or doubt that space-based data centers can compete with operations built on the ground. But Musk, more than anyone, has the means to press forward the bull case for space-based AI, and he is going for it.

Monday’s merger follows an ultra-ambitious filing on Friday with the Federal Communications Commission in which SpaceX sought permission to launch 1 million satellites that will operate as “orbital data centers.” The company said it would deploy the satellites to orbits with an altitude between 500 and 2,000km, and 30-degree and Sun-synchronous inclinations.

SpaceX also recently announced its plans to deploy a space situational awareness system, called Stargaze, that will use star trackers to provide data on potential conjunctions between satellites in orbit. The goal is to help de-conflict satellite trajectories and avoid collisions in low-Earth orbit.

“This is all happening really fast,” said Victoria Samson, chief director of space security and stability for Secure World Foundation, in an interview.

Crowded orbits

Samson said that, at present, satellites have a fairly large “bubble” of space around them when it comes to collision detection. This is because of uncertainties in the precise location and movement of vehicles. If you improve space situational awareness, such as what SpaceX seeks to do with Stargaze, those bubbles could be shrunk to reduce the number of potential collision warnings. But that will come with risks.

“There’s a lot of room in space, of course,” Samson said. “But the question is, how much risk do you want to take?”

A technical expert at The Aerospace Corporation, Marlon Sorge, told Ars that many unanswered questions about SpaceX’s proposed megaconstellation for orbital data centers make it difficult to assess the risks of collision. This includes their size (they will require very large solar arrays to collect sunlight) and precisely where the satellites will be deployed. There is already a lot of debris at around 800 to 1,000 km above Earth from previous collisions, including from an infamous Chinese anti-satellite missile test in 2007, which created more than 3,000 pieces of golf-ball-sized or larger debris.

Above that altitude, there is less debris, Sorge said. But objects at that altitude take centuries to deorbit naturally, due to the very limited atmosphere.

“The big challenge at those altitudes is the stuff that’s up there stays up there,” Sorge said. “If you generate more debris, if you have problems, it won’t go away, so you’re stuck with it.”

SpaceX sought to address these concerns in its regulatory filing, noting that each satellite would have “redundant maneuverability capabilities” in order to deorbit into Earth’s atmosphere. The filing also appears to recognize emerging science that indicates that aluminum burning up from reentering satellites is harmful to ozone levels. To address this, SpaceX is considering moving aging satellites into “high altitude Earth orbits or heliocentric orbits.”

However, Sorge noted that the amount of energy, or delta-V, needed to move a satellite from low-Earth orbit into a heliocentric orbit is “non-trivial.”

Has SpaceX lost its way?

One of the many questions raised by the new merger is whether SpaceX has lost its way. Musk founded the company in 2002 with the singular purpose of settling Mars, an audacious if not impossible goal at the time. In the decades since, SpaceX has made credible progress toward Mars, and with Starship, humanity has for the first time a transportation system potentially capable of landing humans on the red planet.

But acquiring an AI company and putting so much effort into orbital data centers? Is this consistent with the Mars mission? Musk clearly thinks it is.

“While launching AI satellites from Earth is the immediate focus, Starship’s capabilities will also enable operations on other worlds,” he wrote. “Thanks to advancements like in-space propellant transfer, Starship will be capable of landing massive amounts of cargo on the Moon. Once there, it will be possible to establish a permanent presence for scientific and manufacturing pursuits. Factories on the Moon can take advantage of lunar resources to manufacture satellites and deploy them further into space.”

And from there, he said, Mars will be firmly on the horizon.

“The capabilities we unlock by making space-based data centers a reality will fund and enable self-growing bases on the Moon, an entire civilization on Mars and ultimately expansion to the Universe,” he wrote.

That’s the vision, at least.

Photo of Eric Berger

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

SpaceX acquires xAI, plans to launch a massive satellite constellation to power it Read More »

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Rocket Report: How a 5-ton satellite fell off a booster; will SpaceX and xAI merge?

ESA to study Falcon 9 breakup over Poland. The European Space Agency has published a call to tender for a study examining the reentry and breakup of a SpaceX Falcon 9 upper stage in February last year, European Spaceflight reports. In the early hours of February 19, 2025, a Falcon 9 second stage underwent an uncontrolled atmospheric re-entry over Poland. At least four fragments of the stage survived re-entry and landed in various locations across the country. While no one was injured and no property was damaged, at least one fragment landed in a populated area.

Not just an academic study … ESA hopes to use data collected during the reentry of the Falcon 9 upper stage over Poland to help predict the risks associated with the re-entry of elongated upper stages. There are currently considerable uncertainties surrounding the physics and dynamics of destructive reentry in the very low-Earth orbit regime, below 150km. It’s not an academic study, as in 2015 there were approximately 80 orbital rocket launches. A decade on, that figure has almost quadrupled, with 317 successful orbital rocket launches occurring in 2025. (submitted  by EllPeaTea)

SpaceX targets mid-March for next Starship launch. The company plans to launch Starship’s next test flight in six weeks, SpaceX founder Elon Musk said Sunday, January 25, Space.com reports. The flight will be the 12th overall for Starship but the first of the bigger, more powerful, and much-anticipated “Version 3” (V3) iteration of the vehicle.

A better engine … Starship V3 is slightly taller than V2—408.1 feet (124.4 meters) vs. 403.9 feet (123.1 m), but considerably more powerful. V3 can loft more than 100 tons of payload to low-Earth orbit, compared to about 35 tons for V2, according to Musk. The increased brawn comes courtesy of Raptor 3, a new variant of the engine that will fly for the first time on the upcoming test mission. SpaceX is hoping it proves more reliable than V2 as well.

Seeking information about Challenger artifacts. Back in 2010, Robert Pearlman of CollectSpace bought a batch of 18 space shuttle-era “Remove Before Flight” tags on eBay. It was only later that he pieced together that these tags were, in fact, removed from the external tank of STS 51-L, the ill-fated flight of space shuttle Challenger in 1986. He wrote about the experience on Ars.

How did they get to eBay? … “When the tags were first identified, contacts at NASA and Lockheed, among others, were unable to explain how they ended up on eBay and, ultimately, with me,” Pearlman said. He wants to gather more information about the provenance of the tags so that he can donate them to museums, with their full backstory.

Next three launches

January 30: Falcon 9 | Starlink 6-101 | Cape Canaveral Space Force Station, Florida | 05: 51 UTC

February 2: Falcon 9 | Starlink 17-32 | Vandenberg Space Force Base, Calif. | 15: 17 UTC

February 3: Falcon 9 | Starlink 6-103 | Cape Canaveral Space Force Station, Florida | 22: 12 UTC

Rocket Report: How a 5-ton satellite fell off a booster; will SpaceX and xAI merge? Read More »

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Here’s why Blue Origin just ended its suborbital space tourism program

Blue Origin has “paused” its New Shepard program for the next two years, a move that likely signals a permanent end to the suborbital space tourism initiative.

The small rocket and capsule have been flying since April 2015 and have combined to make 38 launches, all but one of which were successful, and 36 landings. In its existence, the New Shepard program flew 98 people to space, however briefly, and launched more than 200 scientific and research payloads into the microgravity environment.

So why is Blue Origin, founded by Jeff Bezos more than a quarter of a century ago, ending the company’s longest-running program?

“We will redirect our people and resources toward further acceleration of our human lunar capabilities inclusive of New Glenn,” wrote the company’s chief executive, Dave Limp, in an internal email on Friday afternoon. “We have an extraordinary opportunity to be a part of our nation’s goal of returning to the Moon and establishing a permanent, sustained lunar presence.”

Move was a surprise

The cancellation came, generally, as a surprise to Blue Origin employees. The company flew its most recent mission eight days ago, launching six people into space. Moreover, the company has four new boosters in various stages of development as well as two new capsules under construction. Blue Origin has been selling human flights for more than a year  and is still commanding a per-seat price of approximately $1 million based on recent sales. It was talking about expansion to new spaceports in September.

Still, there have always been questions about the program’s viability. In November 2023, Ars published an article asking how long Bezos would continue to subsidize the New Shepard program, which at the time was “hemorrhaging” money. Sources indicate the program has gotten closer to breaking even, but it remains a drain on Blue Origin’s efforts.

More than 500 people spend part or all of their time working on New Shepard, but it also draws on other resources within the company. Although it is a small fraction of the company’s overall workforce, it is nonetheless a distraction from the company’s long-term ambitions to build settlements in space where millions of people will live, work, and help move industrial activity off Earth and into orbit.

Here’s why Blue Origin just ended its suborbital space tourism program Read More »

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NASA faces a crucial choice on a Mars spacecraft—and it must decide soon

However, some leaders within NASA see the language in the Cruz legislation as spelling out a telecommunications orbiter only and believe it would be difficult, if not impossible, to run a procurement competition between now and September 30th for anything beyond a straightforward communications orbiter.

In a statement provided to Ars by a NASA spokesperson, the agency said that is what it intends to do.

“NASA will procure a high-performance Mars telecommunications orbiter that will provide robust, continuous communications for Mars missions,” a spokesperson said. “NASA looks forward to collaborating with our commercial partners to advance deep space communications and navigation capabilities, strengthening US leadership in Mars infrastructure and the commercial space sector.”

Big decisions loom

Even so, sources said Isaacman has yet to decide whether the orbiter should include scientific instruments. NASA could also tap into other funding in its fiscal year 2026 budget, which included $110 million for unspecified “Mars Future Missions,” as well as a large wedge of funding that could potentially be used to support a Mars commercial payload delivery program.

The range of options before NASA, therefore, includes asking industry for a single telecom orbiter from one company, asking for a telecom orbiter with the capability to add a couple of instruments, or creating competition by asking for multiple orbiters and capabilities by tapping into the $700 million in the Cruz bill but then augmenting this with other Mars funding.

One indication that this process has been muddied within NASA came a week ago, when the space agency briefly posted a “Justification for Other Than Full and Open Competition, Extension” notice on a government website. It stated that the agency “will only conduct a competition among vendors that satisfy the statutory qualifications.” The notice also listed the companies eligible to bid based on the Cruz language: Blue Origin, L3Harris, Lockheed Martin, Northrop Grumman, Rocket Lab, SpaceX, Quantum Space, and Whittinghill Aerospace.

NASA faces a crucial choice on a Mars spacecraft—and it must decide soon Read More »