Space

after-critics-decry-orion-heat-shield-decision,-nasa-reviewer-says-agency-is-correct

After critics decry Orion heat shield decision, NASA reviewer says agency is correct


“If this isn’t raising red flags out there, I don’t know what will.”

NASA’s Orion spacecraft, consisting of a US-built crew module and European service module, is lifted during prelaunch processing at Kennedy Space Center in 2021. Credit: NASA/Amanda Stevenson

Within hours of NASA announcing its decision to fly the Artemis II mission aboard an Orion spacecraft with an unmodified heat shield, critics assailed the space agency, saying it had made the wrong decision.

“Expediency won over safety and good materials science and engineering. Sad day for NASA,” Ed Pope, an expert in advanced materials and heat shields, wrote on LinkedIn.

There is a lot riding on NASA’s decision, as the Artemis II mission involves four astronauts and the space agency’s first crewed mission into deep space in more than 50 years.

A former NASA astronaut, Charles Camarda, also expressed his frustrations on LinkedIn, saying the space agency and its leadership team should be “ashamed.” In an interview on Friday, Camarda, an aerospace engineer who spent two decades working on thermal protection for the space shuttle and hypersonic vehicles, said NASA is relying on flawed probabilistic risk assessments and Monte Carlo simulations to determine the safety of Orion’s existing heat shield.

“I worked at NASA for 45 years,” Camarda said. “I love NASA. I do not love the way NASA has become. I do not like that we have lost our research culture.”

NASA makes a decision

Pope, Camarada, and others—an official expected to help set space policy for the Trump administration told Ars on background, “It’s difficult to trust any of their findings”—note that NASA has spent two years assessing the char damage incurred by the Orion spacecraft during its first lunar flight in late 2022, with almost no transparency. Initially, agency officials downplayed the severity of the issue, and the full scope of the problem was not revealed until a report this May by NASA’s inspector general, which included photos of a heavily pock-marked heat shield.

This year, from April to August, NASA convened an independent review team (IRT) to assess its internal findings about the root cause of the charring on the Orion heat shield and determine whether its plan to proceed without modifications to the heat shield was the correct one. However, though this review team wrapped up its work in August and began briefing NASA officials in September, the space agency kept mostly silent about the problem until a news conference on Thursday.

The inspector general’s report on May 1 included new images of Orion’s heat shield.

Credit: NASA Inspector General

The inspector general’s report on May 1 included new images of Orion’s heat shield. Credit: NASA Inspector General

“Based on the data, we have decided—NASA unanimously and our decision-makers—to move forward with the current Artemis II Orion capsule and heat shield, with a modified entry trajectory,” Bill Nelson, NASA’s administrator, said Thursday. The heat shield investigation and other issues with the Orion spacecraft will now delay the Artemis II launch until April 2026, a slip of seven months from the previous launch date in September 2025.

Notably the chair of the IRT, a former NASA flight director named Paul Hill, was not present at Thursday’s news conference. Nor did the space agency release the IRT’s report on its recommendations to NASA.

In an interview, Camarda said he knew two people on the IRT who dissented from its conclusions that NASA’s plan to fly the Orion heat shield, without modifications to address the charring problem, was acceptable. He also criticized the agency for not publicly releasing the independent report. “NASA did not post the results of the IRT,” he said. “Why wouldn’t they post the results of what the IRT said? If this isn’t raising red flags out there, I don’t know what will.”

The view from the IRT

Ars took these concerns to NASA on Friday, and the agency responded by offering an interview with Paul Hill, the review team’s chair. He strongly denied there were any dissenting views.

“Every one of our conclusions, every one of our recommendations, was unanimously agreed to by our team,” Hill said. “We went through a lot of effort, arguing sentence by sentence, to make sure the entire team agreed. To get there we definitely had some robust and energetic discussions.”

Hill did acknowledge that, at the outset of the review team’s discussions, two people were opposed to NASA’s plan to fly the heat shield as is. “There was, early on, definitely a difference of opinion with a couple of people who felt strongly that Orion’s heat shield was not good enough to fly as built,” he said.

However, Hill said the IRT was won over by the depth of NASA’s testing and the openness of agency engineers who worked with them. He singled out Luis Saucedo, a NASA engineer at NASA’s Johnson Space Center who led the agency’s internal char loss investigation.

“The work that was done by NASA, it was nothing short of eye-watering, it was incredible,” Hill said.

At the base of Orion, which has a titanium shell, there are 186 blocks of a material called Avcoat individually attached to provide a protective layer that allows the spacecraft to survive the heating of atmospheric reentry. Returning from the Moon, Orion encounters temperatures of up to 5,000° Fahrenheit (2,760° Celsius). A char layer that builds up on the outer skin of the Avcoat material is supposed to ablate, or erode, in a predictable manner during reentry. Instead, during Artemis I, fragments fell off the heat shield and left cavities in the Avcoat material.

Work by Saucedo and others, including substantial testing in ground facilities, wind tunnels, and high-temperature arc jet chambers, allowed engineers to find the root cause of gases getting trapped in the heat shield and leading to cracking. Hill said his team was convinced that NASA successfully recreated the conditions observed during reentry and were able to replicate during testing the Avcoat cracking that occurred during Artemis I.

When he worked at the agency, Hill played a leading role during the investigation into the cause of the loss of space shuttle Columbia, in 2003. He said he could understand if NASA officials “circled the wagons” in response to the IRT’s work, but he said the agency could not have been more forthcoming. Every time the review team wanted more data or information, it was made available. Eventually, this made the entire IRT comfortable with NASA’s findings.

Publicly, NASA could have been more transparent

The stickiest point during the review team’s discussions involved the permeability of the heat shield. Counter-intuitively, the heat shield was not permeable enough during Artemis I. This led to gas buildup, higher pressures, and the cracking ultimately observed. The IRT was concerned because, as designed, the heat shield for Artemis II is actually more impermeable than the Artemis I vehicle.

Why is this? It has to do with the ultrasound testing that verifies the strength of the bond between the Avcoat blocks and the titanium skin of Orion. With a more permeable heat shield, it was difficult to complete this testing with the Artemis I vehicle. So the shield for Artemis II was made more impermeable to accommodate ultrasound testing. “That was a technical mistake, and when they made that decision they did not understand the ramifications,” Hill said.

However, Hill said NASA’s data convinced the IRT that modifying the entry profile for Artemis II, to minimize the duration of passage through the atmosphere, would offset the impermeability of the heat shield.

Hill said he did not have the authority to release the IRT report, but he did agree that the space agency has not been forthcoming with public information about their analyses before this week.

“This is a complex story to tell, and if you want everybody to come along with you, you’ve got to keep them informed,” he said of NASA. “I think they unintentionally did themselves a disservice by holding their cards too close.”

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.

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How did the CEO of an online payments firm become the nominee to lead NASA?


Expect significant changes for America’s space agency.

A young man smiles while sitting amidst machinery.

Jared Isaacman at SpaceX Headquarters in Hawthorne, California. Credit: SpaceX

Jared Isaacman at SpaceX Headquarters in Hawthorne, California. Credit: SpaceX

President-elect Donald Trump announced Wednesday his intent to nominate entrepreneur and commercial astronaut Jared Isaacman as the next administrator of NASA.

For those unfamiliar with Isaacman, who at just 16 years old founded a payment processing company in his parents’ basement that ultimately became a major player in online payments, it may seem an odd choice. However, those inside the space community welcomed the news, with figures across the political spectrum hailing Isaacman’s nomination variously as “terrific,” “ideal,” and “inspiring.”

This statement from Isaac Arthur, president of the National Space Society, is characteristic of the response: “Jared is a remarkable individual and a perfect pick for NASA Administrator. He brings a wealth of experience in entrepreneurial enterprise as well as unique knowledge in working with both NASA and SpaceX, a perfect combination as we enter a new era of increased cooperation between NASA and commercial spaceflight.”

So who is Jared Isaacman? Why is his nomination being welcomed in most quarters of the spaceflight community? And how might he shake up NASA? Read on.

Meet Jared

Isaacman is now 41 years old, about half the age of current NASA Administrator Bill Nelson. He has founded a couple of companies, including the publicly traded Shift4 (look at the number 4 on a keyboard to understand the meaning of the name), as well as Draken International, a company that trained pilots of the US Air Force.

Throughout his career, Isaacman has shown a passion for flying and adventure. About five years ago, he decided he wanted to fly into space and bought the first commercial mission on a SpaceX Dragon spacecraft. But this was no joy ride. Some of his friends assumed Isaacman would invite them along. Instead, he brought a cancer survivor, a science educator, and a raffle winner. As part of the flight, this Inspiration4 mission raised hundreds of millions of dollars for research into childhood cancer.

After this mission, Isaacman set about a more ambitious project he named Polaris. The nominal plan was to fly two additional missions on Dragon and then become the first person to fly on SpaceX’s Starship. He flew the first of these missions, Polaris Dawn, in September. He brought along a pilot, Scott “Kidd” Poteet, and two SpaceX engineers, Anna Menon and Sarah Gillis. They were the first SpaceX employees to ever fly into orbit.

The mission was characteristic of Isaacman’s goal to expand the horizon of what is possible for humans in space. Polaris Dawn flew to an altitude of 1,408.1 km on the first day, the highest Earth-orbit mission ever flown and the farthest humans have traveled from our planet since Apollo. On the third day of the flight, the four crew members donned spacesuits designed and developed by SpaceX within the last two years. After venting the cabin’s atmosphere into space, first Isaacman and then Gillis spent several minutes extending their bodies out of the Dragon spacecraft.

This was the first private spacewalk in history and underscored Isaacman’s commitment to accelerating the transition of spaceflight as rare and government-driven to more publicly accessible.

Why does the space community welcome him?

In the last five years, Isaacman has impressed most of those within the spaceflight community he has interacted with. He has taken his responsibilities seriously, training hard for his Dragon missions and using NASA facilities such as a pressure chamber at NASA’s Johnson Space Center when appropriate.

Through these interactions—based upon my interviews with many people—Isaacman has demonstrated that he is not a billionaire seeking a joyride but someone who wants to change spaceflight for the better. In his spaceflights, he has also demonstrated himself to be a thoughtful and careful leader.

Two examples illustrate this. The ride to space aboard a Crew Dragon vehicle is dynamic, with the passengers pulling in excess of 3 Gs during the initial ascent, the abrupt cutoff of the main Falcon 9 rocket’s engines, stage separation, and then the grinding thrust of the upper stage engines just behind the capsule. In interviews, each of the Polaris Dawn crew members remarked about how Isaacman calmly called out these milestones in advance, with a few words about what to expect. It had a calming, reassuring effect and demonstrated that his crew’s health and safety were foremost among his concerns.

Another way in which Isaacman shows care for his crew and families is through an annual event called “Fighter Jet Training.” Cognizant of the time crew members spend away from their families training, he invites them and SpaceX employees who have supported his flights to an airstrip in Montana. Over the course of two days, family members get to ride in jets, go on a zero-gravity flight, and participate in other fun activities to get a taste of what flying on the edge is like. Isaacman underwrites all of this as a way of thanking all who are helping him.

The bottom line is that Isaacman, through his actions and words, appears to be a caring person who wants the US spaceflight enterprise to advance to greater heights.

Why would Isaacman want the job?

So why would a billionaire who has been to space twice (and plans to go at least two more times) want to run a federal agency? I have not asked Isaacman this question directly, but in interviews over the years, he has made it clear that he is passionate about spaceflight and views his role as a facilitator desiring to move things forward.

Most likely, he has accepted the job because he wants to modernize NASA and put the space agency in the best position to succeed in the future. NASA is no longer the youthful agency that took the United States to the Moon during the Apollo program. That was more than half a century ago, and while NASA is still capable of great things, it is living with one foot in the past and beholden to large, traditional contractors.

The space agency has a budget of about $25 billion, and no one could credibly argue that all of those dollars are spent efficiently. Several major programs at NASA were created by Congress with the intent of ensuring maximum dollars flowed to certain states and districts. It seems likely that Isaacman and the Trump administration will take a whack at some of these sacred cows.

High on the list is the Space Launch System rocket, which Congress created more than a dozen years ago. The rocket, and its ground systems, have been a testament to the waste inherent in large government programs funded by cost-plus contracts. NASA’s current administrator, Nelson, had a hand in creating this SLS rocket. Even he has decried the effect of this type of contracting as a “plague” on the space agency.

Currently, NASA plans to use the SLS rocket as the means of launching four astronauts inside the Orion spacecraft to lunar orbit. There, they will rendezvous with SpaceX’s Starship vehicle, go down to the Moon for a few days, and then come back to Orion. The spacecraft will then return to Earth.

So long, SLS?

Multiple sources have told Ars that the SLS rocket—which has long had staunch backing from Congress—is now on the chopping block. No final decisions have been made, but a tentative deal is in place with lawmakers to end the rocket in exchange for moving US Space Command to Huntsville, Alabama.

So how would NASA astronauts get to the Moon without the SLS rocket? Nothing is final, and the trade space is open. One possible scenario being discussed for future Artemis missions is to launch the Orion spacecraft on a New Glenn rocket into low-Earth orbit. There, it could dock with a Centaur upper stage that would launch on a Vulcan rocket. This Centaur stage would then boost Orion toward lunar orbit.

NASA’s Space Launch System rocket is seen on the launch pad at Kennedy Space Center in April 2022.

Credit: Trevor Mahlmann

NASA’s Space Launch System rocket is seen on the launch pad at Kennedy Space Center in April 2022. Credit: Trevor Mahlmann

Such a scenario is elegant because it uses rockets that would cost a fraction of the SLS and also includes all key contractors currently involved in the Artemis program, with the exception of Boeing, which would lose out financially. (Northrop Grumman will still make solids for Vulcan, and Aerojet Rocketdyne will make the RL-10 upper stage engines for that rocket.)

As part of the Artemis program, NASA is competing with China to not only launch astronauts to the south pole of the Moon but also to develop a sustainable base of operations there. While there is considerable interest in Mars, sources told Ars that the focus of the space agency is likely to remain on a program that goes to the Moon first and then develops plans for Mars.

This competition is not one between Elon Musk, who founded SpaceX, and Jeff Bezos, who founded Blue Origin. Rather, they are both seen as players on the US team. The Trump administration seems to view entrepreneurial spirit as the key advantage the United States has over China in its competition with China. This op-ed in Space News offers a good overview of this sentiment.

So whither NASA? Under the Trump administration, NASA’s role is likely to focus on stimulating the efforts by commercial space entrepreneurs. Isaacman’s marching orders for NASA will almost certainly be two words: results and speed. NASA, they believe, should transition to become more like its roots in the National Advisory Committee for Aeronautics, which undertook, promoted, and institutionalized aeronautical research—but now for space.

It is not easy to turn a big bureaucracy, and there will undoubtedly be friction and pain points. But the opportunity here is enticing: NASA should not be competing with things that private industry is already doing better, such as launching big rockets. Rather, it should find difficult research and development projects at the edge of the possible. This will certainly be Isaacman’s most challenging mission yet.

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.

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Trump nominates Jared Isaacman to become the next NASA administrator

President-elect Donald Trump announced Wednesday he has selected Jared Isaacman, a billionaire businessman and space enthusiast who twice flew to orbit with SpaceX, to become the next NASA administrator.

“I am delighted to nominate Jared Isaacman, an accomplished business leader, philanthropist, pilot, and astronaut, as Administrator of the National Aeronautics and Space Administration (NASA),” Trump posted on his social media platform, Truth Social. “Jared will drive NASA’s mission of discovery and inspiration, paving the way for groundbreaking achievements in space science, technology, and exploration.”

In a post on X, Isaacman said he was “honored” to receive Trump’s nomination.

“Having been fortunate to see our amazing planet from space, I am passionate about America leading the most incredible adventure in human history,” Isaacman wrote. “On my last mission to space, my crew and I traveled farther from Earth than anyone in over half a century. I can confidently say this second space age has only just begun.”

Top officials who served at NASA under President Trump and President Obama endorsed Isaacman as the next NASA boss.

“Jared Isaacman will be an outstanding NASA Administrator and leader of the NASA family,” said Jim Bridenstine, who led NASA as administrator during Trump’s first term in the White House. “Jared’s vision for pushing boundaries, paired with his proven track record of success in private industry, positions him as an ideal candidate to lead NASA into a bold new era of exploration and discovery. I urge the Senate to swiftly confirm him.”

Lori Garver, NASA’s deputy administrator during the Obama administration, wrote on X that Isaacman’s nomination was “terrific news,” adding that “he has the opportunity to build on NASA’s amazing accomplishments to pave our way to an even brighter future.”

Isaacman, 41, is the founder and CEO of Shift4, a mobile payment processing platform, and co-founded Draken International, which owns a fleet of retired fighter jets to pose as adversaries for military air combat training. If the Senate confirms his nomination, Isaacman would become the 15th NASA administrator, and the fourth who has flown in space.

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Over the weekend, China debuted a new rocket on the nation’s path to the Moon


Depending on how you count them, China now has roughly 18 types of active space launchers.

China’s new Long March 12 rocket made a successful inaugural flight Saturday, placing two experimental satellites into orbit and testing uprated, higher-thrust engines that will allow a larger Chinese launcher in development to send astronauts to the Moon.

The 203-foot-tall (62-meter) Long March 12 rocket lifted off at 9: 25 am EST (14: 25 UTC) Saturday from the Wenchang commercial launch site on Hainan Island, China’s southernmost province. This was also the first rocket launch from a new commercial spaceport at Wenchang, consisting of two launch sites a short distance from a pair of existing launch pads used by heavier rockets primarily geared for government missions.

The two-stage rocket delivered two technology demonstration satellites into a near-circular 50-degree-inclination orbit with an average altitude of nearly 650 miles (about 1,040 kilometers), according to US military tracking data.

The Long March 12 is the newest member of China’s Long March rocket family, which has been flying since China launched its first satellite into orbit in 1970. The Long March rockets have significantly evolved since then and now include a range of launch vehicles of different sizes and designs.

Versions of the Long March 2, 3, and 4 rockets have been flying since the 1970s and 1980s, burning the same toxic mix of hypergolic propellants as China’s early ICBMs. More recently, China debuted the Long March 5, 6, 7, and 8 rockets consuming the cleaner combination of kerosene and liquid oxygen propellants. These new rockets provide China with a spectrum of small, medium, and heavy-lift launch capabilities.

So many rockets

So, why bother with yet another Long March rocket? One reason is that Chinese officials seek a less expensive rocket to deploy thousands of small satellites for the country’s Internet mega-constellations to rival SpaceX’s Starlink network. Another motivation is to demonstrate the performance of upgraded rocket engines, new technologies, and fresh designs, some of which appear to copy SpaceX’s workhorse Falcon 9 rocket.

Like all of China’s other existing rockets, the Long March 12 configuration that flew Saturday is fully disposable. At the Zhuhai Airshow earlier this month, China’s largest rocket company displayed another version of the Long March 12 with a reusable first stage but with scant design details.

The Long March 12 is powered by four kerosene-fueled YF-100K engines on its first stage, generating more than 1.1 million pounds, or 5,000 kilonewtons of thrust at full throttle. These engines are upgraded, higher-thrust versions of the YF-100 engines used on several other types of Long March rockets.

Models of the Long March rockets on display at the China National Space Administration (CNSA) booth during the China International Aviation & Aerospace Exhibition in Zhuhai, China, on November 12, 2024. In this image, models of a future reusable version of the Long March 12 (left) and the super-heavy Long March 9 (right) are visible. Credit: Qilai Shen/Bloomberg via Getty Images

Notably, China will use the YF-100K variant on the heavy-lift Long March 10 rocket in development to launch Chinese astronauts to the Moon. The heaviest version of the Long March 10 will use 21 of these YF-100K engines on its core stage and strap-on boosters. Now, Chinese engineers have tested the upgraded YF-100K in flight, with favorable results from Saturday’s launch.

China is also developing a new crew-rated spacecraft and lunar lander that will launch on Long March 10 rockets, eyeing a human landing on the lunar surface by 2030. The Long March 10 will have a reusable first stage like the Falcon 9, and China is now working on a super-heavy fully reusable rocket that appears to be a clone of SpaceX’s Starship. This Long March 9 rocket, which probably won’t fly until the 2030s, will enable larger-scale sustained lunar exploration by China.

And now, the details

The Long March 12 was developed by the Shanghai Academy of Spaceflight Technology, also known as SAST, one of the two main state-owned organizations in charge of designing and manufacturing Long March rockets. Together with the Beijing-based China Academy of Launch Vehicle Technology, SAST is part of the China Aerospace Science and Technology Corporation, the largest government-run enterprise overseeing the Chinese space program.

According to SAST, the Long March 12 is capable of delivering a payload of at least 12 metric tons (26,455 pounds) into low-Earth orbit and about half that to a somewhat higher Sun-synchronous orbit. Two kerosene-fueled YF-115 engines power the Long March 12’s upper stage.

The Long March 12 is also China’s first 3.8-meter (12.5-foot) diameter rocket, which is an optimal match between the width of the booster and lift capability, allowing it to be transported by railway to launch sites across China, according to the state-run Xinhua news agency.

China’s older Long March rocket variants are slimmer and generally require engineers to strap together multiple first-stage boosters in a cluster arrangement to achieve performance similar to the Long March 12. The core of the heavy-lift Long March 5 is around 5 meters in diameter and must be transported by sea.

China’s first Long March 12 rocket on its launch pad before liftoff. Credit: Photo by VCG/VCG via Getty Images

In a post-launch press release, SAST identified several other “technology breakthroughs” flying on the Long March 12 rocket. These include a health management system that can diagnose anomalies in flight and adjust the rocket’s trajectory in real time to compensate for any minor problems. The Long March 12 is also China’s first rocket to use cryogenic helium to pressurize its liquid oxygen tanks, and its tanks are made of an aluminum-lithium alloy to save weight.

The Long March 12 is also the first rocket of its size in the Long March family to be assembled on its side instead of stacked vertically on its launch mount. After integrating the rocket in a nearby hangar, technicians transferred the first Long March 12 to its launch pad horizontally, then raised it vertical with an erector system. This is the same way SpaceX integrates and transports Falcon 9 rockets to the launch pad. SpaceX copied this horizontal integration approach from older Soviet-era rockets, and it offers several advantages, allowing teams to assemble rockets faster without the need for large overhead cranes in tall, cavernous vertical assembly buildings.

A bug or a feature?

We’ve already mentioned the proliferation of different types of Long March rockets, with nine classes of Long March launchers currently in operation. And each of these comes in multiple sub-variants.

This is a starkly different approach from SpaceX, which flies standardized rockets like the Falcon 9 and Falcon Heavy, which almost always fly in the same configuration, regardless of the payload or destination for each mission. The only exception is when SpaceX launches Dragon crew or cargo capsules on the Falcon 9.

Depending on how you count them, China now has roughly 18 different types of active space launchers. This number doesn’t include the Long March 9 or Long March 10, but it counts all the other Long March configurations, plus numerous small- and medium-class rockets fielded by China’s quasi-commercial space industry.

These startups operate with the blessing of China’s government and, in many cases, got their start by utilizing surplus military equipment and investment from Chinese local or provincial governments. However, the Chinese Communist Party has allowed them to raise capital from private sources, and they operate on a commercial basis, almost exclusively to serve domestic Chinese markets.

In some cases, these launch startups compete for commercial contracts directly with the government-backed Long March rocket family. The Long March 12 could be in the mix for launching large batches of spacecraft for China’s planned satellite Internet networks.

Some of these launch companies are working on reusable rockets similar in appearance to SpaceX’s Falcon 9. All of these rockets, government and commercial, are part of an ecosystem of Chinese launchers tasked with hauling military and commercial satellites into orbit.

The Long March 12 launch Saturday was China’s 58th orbital launch attempt of 2024, and no single subvariant of a Chinese rocket has flown more than seven times this year. This is in sharp contrast to the United States, which has logged 142 orbital launch attempts so far this year, 119 of them by SpaceX’s Falcon 9 or Falcon Heavy rockets.

There are around a dozen US orbital-class launch vehicle types you might call operational. But a few of these, such as Northrop Grumman’s Pegasus XL and Minotaur, and NASA’s Space Launch System, haven’t flown for several years.

SpaceX’s Falcon 9 is now the dominant leader in the US launch industry. Most of the Falcon 9 launches are filled to capacity with SpaceX’s own Starlink Internet satellites, but many missions fly with their payload fairings only partially full. Still, the Falcon 9 is more affordable on a per-kilogram basis than any other US rocket.

In China, on the other hand, none of the commercial launch startups have emerged as a clear leader. When that happens, if China allows the market to function in a truly commercial manner, some of these Chinese rocket companies will likely fold.

However, China’s government has a strategic interest in maintaining a portfolio of rockets and launch sites, same as the US government. For example, Chinese officials said the new launch site at Wenchang, where the Long March 12 took off from over the weekend, can accommodate 10 or more different types of rockets.

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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Rocket Report: A good week for Blue Origin; Italy wants its own launch capability


Blue Origin is getting ready to test-fire its first fully integrated New Glenn rocket in Florida.

Blue Origin’s first fully integrated New Glenn rocket rolls out to its launch pad at Cape Canaveral Space Force Station, Florida. Credit: Blue Origin

Welcome to Edition 7.21 of the Rocket Report! We’re publishing the Rocket Report a little early this week due to the Thanksgiving holiday in the United States. We don’t expect any Thanksgiving rocket launches this year, but still, there’s a lot to cover from the last six days. It seems like we’ve seen the last flight of the year by SpaceX’s Starship rocket. A NASA filing with the Federal Aviation Administration requests approval to fly an aircraft near the reentry corridor over the Indian Ocean for the next Starship test flight. The application suggests the target launch date is January 11, 2025.

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.

Another grim first in Ukraine. For the first time in warfare, Russia launched an Intermediate Range Ballistic Missile against a target in Ukraine, Ars reports. This attack on November 21 followed an announcement from Russian President Vladimir Putin earlier the same week that the country would change its policy for employing nuclear weapons in conflict. The IRBM, named Oreshnik, is the longest-range weapon ever used in combat in Europe, and could be refitted to carry nuclear warheads on future strikes.

Putin’s rationale … Putin says his ballistic missile attack on Ukraine is a warning to the West after the US and UK governments approved Ukraine’s use of Western-supplied ATACMS and Storm Shadow tactical ballistic missiles against targets on Russian territory. The Russian leader said his forces could attack facilities in Western countries that supply weapons for Ukraine to use on Russian territory, continuing a troubling escalatory ladder in the bloody war in Eastern Europe. Interestingly, this attack has another rocket connection. The target was apparently a factory in Dnipro that, not long ago, produced booster stages for Northrop Grumman’s Antares rocket.

Blue Origin hops again. Blue Origin launched its ninth suborbital human spaceflight over West Texas on November 22, CollectSpace reports. Six passengers rode the company’s suborbital New Shepard booster to the edge of space, reaching an altitude of 347,661 feet (65.8 miles or 106 kilometers), flying 3 miles (4.8 km) above the Kármán line that serves as the internationally-accepted border between Earth’s atmosphere and outer space. The pressurized capsule carrying the six passengers separated from the booster, giving them a taste of microgravity before parachuting back to Earth.

Dreams fulfilled … These suborbital flights are getting to be more routine, and may seem insignificant compared to Blue Origin’s grander ambitions of flying a heavy-lift rocket and building a human-rated Moon lander. However, we’ll likely have to wait many years before truly routine access to orbital flights becomes available for anyone other than professional astronauts or multimillionaires. This means tickets to ride on suborbital spaceships from Blue Origin or Virgin Galactic are currently the only ways to get to space, however briefly, for something on the order of $1 million or less. That puts the cost of one of these seats within reach for hundreds of thousands of people, and within the budgets of research institutions and non-profits to fund a flight for a scientist, student, or a member of the general public. The passengers on the November 22 flight included Emily Calandrelli, known online as “The Space Gal,” an engineer, Netflix host, and STEM education advocate who became the 100th woman to fly to space. (submitted by Ken the Bin)

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Rocket Lab flies twice in one day. Two Electron rockets took flight Sunday, one from New Zealand’s Mahia Peninsula and the other from Wallops Island, Virginia, making Rocket Lab the first commercial space company to launch from two different hemispheres in a 24-hour period, Payload reports. One of the missions was the third of five launches for the French Internet of Things company Kinéis, which is building a satellite constellation. The other launch was an Electron modified to act as a suborbital technology demonstrator for hypersonic research. Rocket Lab did not disclose the customer, but speculation is focused on the defense contractor Leidos, which signed a four-launch deal with Rocket Lab last year.

Building cadence … SpaceX first launched two Falcon 9 rockets in 24 hours in 2021. This year, the company launched three Falcon 9s in a single day from pads at Cape Canaveral Space Force Station, Florida, and Vandenberg Space Force Base, California. Rocket Lab has now launched 14 Electron rockets this year, more than any other Western company other than SpaceX. “Two successful launches less than 24 hours apart from pads in different hemispheres. That’s unprecedented capability in the small launch market and one we’re immensely proud to deliver at Rocket Lab,” said Peter Beck, the company’s founder and CEO. (submitted by Ken the Bin)

Italy to reopen offshore launch site. An Italian-run space center located in Kenya will once again host rocket launches from an offshore launch platform, European Spaceflight reports. The Italian minister for enterprises, Adolfo Urso, recently announced that the country decided to move ahead with plans to again launch rockets from the Luigi Broglio Space Center near Malindi, Kenya. “The idea is to give a new, more ambitious mission to this base and use it for the launch of low-orbit microsatellites,” Urso said.

Decades of dormancy … Between 1967 and 1988, the Italian government and NASA partnered to launch nine US-made Scout rockets from the Broglio Space Center to place small satellites into orbit. The rockets lifted off from the San Marco platform, a converted oil platform in equatorial waters off the Kenyan coast. Italian officials have not said what rocket might be used once the San Marco platform is reactivated, but Italy is the leading contributor on the Vega C rocket, a solid-fueled launcher somewhat larger than the Scout. Italy will manage the reactivation of the space center, which has remained in service as a satellite tracking station, under the country’s Mattei Plan, an initiative aimed at fostering stronger economic partnerships with African nations. (submitted by Ken the Bin)

SpaceX flies same rocket twice in two weeks. Less than 14 days after its previous flight, a Falcon 9 booster took off again from Florida’s Space Coast early Monday to haul 23 more Starlink internet satellites into orbit, Spaceflight Now reports. The booster, numbered B1080 in SpaceX’s fleet of reusable rockets, made its 13th trip to space before landing on SpaceX’s floating drone ship in the Atlantic Ocean. The launch marked a turnaround of 13 days, 12 hours, and 44 minutes from this booster’s previous launch November 11, also with a batch of Starlink satellites. The previous record turnaround time between flights of the same Falcon 9 booster was 21 days.

400 and still going … SpaceX’s launch prior to this one was on Saturday night, when a Falcon 9 carried a set of Starlinks aloft from Vandenberg Space Force Base, California. The flight Saturday night was the 400th launch of a Falcon 9 rocket since 2010, and SpaceX’s 100th launch from the West Coast. (submitted by Ken the Bin)

Chinese firm launches upgraded rocket. Chinese launch startup LandSpace put two satellites into orbit late Tuesday with the first launch of an improved version of the Zhuque-2 rocket, Space News reports. The enhanced rocket, named the Zhuque-2E, replaces vernier steering thrusters with a thrust vector control system on the second stage engine, saving roughly 880 pounds (400 kilograms) in mass. The Zhuque-2E rocket is capable of placing a payload of up to 8,800 pounds (4,000 kilograms) into a polar Sun-synchronous orbit, according to LandSpace.

LandSpace in the lead … Founded in 2015, LandSpace is a leader among China’s crop of quasi-commercial launch startups. The company hasn’t launched as often as some of its competitors, but it became the first launch operator in the world to successfully reach orbit with a methane/liquid oxygen (methalox) rocket last year. Now, LandSpace has improved on its design to create the Zhuque-2E rocket, which also has a large niobium allow nozzle extension on the second stage engine for reduced weight. LandSpace also claims the Zhuque-2E is China’s first rocket to use fully supercooled propellant loading, similar to the way SpaceX loads densified propellants into its rockets to achieve higher performance. (submitted by Ken the Bin)

NASA taps Falcon Heavy for another big launch. A little more than a month after SpaceX launched NASA’s flagship Europa Clipper mission on a Falcon Heavy rocket, the space agency announced its next big interplanetary probe will also launch on a Falcon Heavy, Ars reports. What’s more, the Dragonfly mission the Falcon Heavy will launch in 2028 is powered by a plutonium power source. This will be the first time SpaceX launches a rocket with nuclear materials onboard, requiring an additional layer of safety certification by NASA. The agency’s most recent nuclear-powered spacecraft have all launched on United Launch Alliance Atlas V rockets, which are nearing retirement.

The details … Dragonfly is one of the most exciting robotic missions NASA has ever developed. The mission is to send an automated rotorcraft to explore Saturn’s largest moon, Titan, where Dragonfly will soar through a soupy atmosphere in search of organic molecules, the building blocks of life. It’s a hefty vehicle, about the size of a compact car, and much larger than NASA’s Ingenuity Mars helicopter. The launch period opens July 5, 2028, to allow Dragonfly to reach Titan in 2034. NASA is paying SpaceX $256.6 million to launch the mission on a Falcon Heavy. (submitted by Ken the Bin)

New Glenn is back on the pad. Blue Origin has raised its fully stacked New Glenn rocket on the launch pad at Cape Canaveral Space Force Station ahead of pre-launch testing, Florida Today reports. The last time this new 322-foot-tall (98-meter) rocket was visible to the public eye was in March. Since then, Blue Origin has been preparing the rocket for its inaugural launch, which could yet happen before the end of the year. Blue Origin has not announced a target launch date.

But first, more tests … Blue Origin erected the New Glenn rocket vertical on the launch pad earlier this year for ground tests, but this is the first time a flight-ready (or close to it) New Glenn has been spotted on the pad. This time, the first stage booster has its full complement of seven methane-fueled BE-4 engines. Before the first flight, Blue Origin plans to test-fire the seven BE-4 engines on the pad and conduct one or more propellant loading tests to exercise the launch team, the rocket, and ground systems before launch day.

Second Ariane 6 incoming. ArianeGroup has confirmed that the first and second stages for the second Ariane 6 flight have begun the transatlantic voyage from Europe to French Guiana aboard the sail-assisted transport ship Canopée, European Spaceflight reports. The second Ariane 6 launch, previously targeted before the end of this year, has now been delayed to no earlier than February 2025, according to Arianespace, the rocket’s commercial operator. This follows a mostly successful debut launch in July.

An important passenger … While the first Ariane 6 launch carried a cluster of small experimental satellites, the second Ariane 6 rocket will carry a critical spy satellite into orbit for the French armed forces. Shipping the core elements of the second Ariane 6 to the launch site in Kourou, French Guiana, is a significant step in the launch campaign. Once in Kourou, the stages will be connected together and rolled out to the launch pad, where technicians will install two strap-on solid rocket boosters and the payload fairing containing France’s CSO-3 military satellite.

Next three launches

Nov. 29: Soyuz-2.1a | Kondor-FKA 2 | Vostochny Cosmodrome, Russia | 21: 50 UTC

Nov. 30: Falcon 9 | Starlink 6-65 | Cape Canaveral Space Force Station, Florida | 05: 00 UTC

Nov. 30: Falcon 9 | NROL-126 | Vandenberg Space Force Base, California | 08: 08 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: A good week for Blue Origin; Italy wants its own launch capability Read More »

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NASA awards SpaceX a contract for one of the few things it hasn’t done yet

Notably, the Dragonfly launch was one of the first times United Launch Alliance has been eligible to bid its new Vulcan rocket for a NASA launch contract. NASA officials gave the green light for the Vulcan rocket to compete head-to-head with SpaceX’s Falcon 9 and Falcon Heavy after ULA’s new launcher had a successful debut launch earlier this year. With this competition, SpaceX came out on top.

A half-life of 88 years

NASA’s policy for new space missions is to use solar power whenever possible. For example, Europa Clipper was originally supposed to use a nuclear power generator, but engineers devised a way for the spacecraft to use expansive solar panels to capture enough sunlight to produce electricity, even at Jupiter’s vast distance from the Sun.

But there are some missions where this isn’t feasible. One of these is Dragonfly, which will soar through the soupy nitrogen-methane atmosphere of Titan. Saturn’s largest moon is shrouded in cloud cover, and Titan is nearly 10 times farther from the Sun than Earth, so its surface is comparatively dim.

The Dragonfly mission, seen here in an artist’s concept, is slated to launch no earlier than 2027 on a mission to explore Saturn’s moon Titan. Credit: NASA/JHUAPL/Steve Gribben

Dragonfly will launch with about 10.6 pounds (4.8 kilograms) of plutonium-238 to fuel its power generator. Plutonium-238 has a half-life of 88 years. With no moving parts, RTGs have proven quite reliable, powering spacecraft for many decades. NASA’s twin Voyager probes are approaching 50 years since launch.

The Dragonfly rotorcraft will launch cocooned inside a transit module and entry capsule, then descend under parachute through Titan’s atmosphere, which is four times denser than Earth’s. Finally, Dragonfly will detach from its descent module and activate its eight rotors to reach a safe landing.

Once on Titan, Dragonfly is designed to hop from place to place on numerous flights, exploring environments rich in organic molecules, the building blocks of life. This is one of NASA’s most exciting, and daring, robotic missions of all time.

After launching from NASA’s Kennedy Space Center in Florida in July 2028, it will take Dragonfly about six years to reach Titan. When NASA selected the Dragonfly mission to begin development in 2019, the agency hoped to launch the mission in 2026. NASA later directed Dragonfly managers to target a launch in 2027, and then 2028, requiring the mission to change from a medium-lift to a heavy-lift rocket.

Dragonfly has also faced rising costs NASA blames on the COVID-19 pandemic and supply chain issues and an in-depth redesign since the mission’s selection in 2019. Collectively, these issues caused Dragonfly’s total budget to grow to $3.35 billion, more than double its initial projected cost.

NASA awards SpaceX a contract for one of the few things it hasn’t done yet Read More »

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After Russian ship docks to space station, astronauts report a foul smell

Russian space program faces ongoing challenges

Zak reported that the cosmonauts aboard the Russian segment of the station donned protective equipment, and activated an extra air-scrubbing system aboard their side of the facility. On the US segment of the station, NASA astronaut Don Pettit said he smelled something akin to “spray paint.”

As of Sunday afternoon, NASA said there were no concerns for the crew, and that astronauts were working to open the hatch between the Poisk module and the Progress spacecraft. Attached to the space station in 2009, Poisk is a small element that connects to one of four docking ports on the Russian segment of the station.

It was not immediately clear what caused the foul odor to emanate from the Progress vehicle, however previous Russian vehicles have had leaks while in space. Most recently, in February 2023, a Progress vehicle attached to the station lost pressurization in its cooling system.

Facing financial and staffing pressures due to the ongoing Russian war against Ukraine, the main Russian space corporation, Roscosmos, has faced a series of technical problems as it has sought to fly people and supplies to the International Space Station in recent years.

After Russian ship docks to space station, astronauts report a foul smell Read More »

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Rocket Report: Next Vulcan launch slips into 2025; Starship gets a green light


All the news that’s fit to lift

“Constellation companies and government satellite operators are desperate.”

NASA Astronaut Don Pettit captured this photo of the sixth Starship launch from the International Space Station on Tuesday. Credit: Don Pettit/NASA

Welcome to Edition 7.20 of the Rocket Report! This is a super-long version of the newsletter because we did not publish last week, and there is just a ton of launch news of late. Also, I want to note that next week’s report will appear a day early, on Wednesday, due to the Thanksgiving holiday. Speaking of which, you all have our thanks for reading and sharing the Rocket Report with others.

On a completely unrelated note, Rocket Lab has had some amazing mission names over the years. But this weekend’s “Ice AIS Baby” launch is probably the best. I always appreciate their effort to find non-vanilla names and find a way to stop, collaborate, and listen.

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.

Firefly raises a tidy sum as its ambitions soar. Firefly announced earlier this month that it has completed a $175 million Series D fundraising round, resulting in a valuation of more than $2 billion. This follows a banner year of fundraising in 2023, when Firefly reported investors funneled approximately $300 million into the company at a valuation of $1.5 billion, Ars reports. In a statement, Firefly said the money raised in the Series D round will help the company “expand market reach with its Elytra spacecraft, move to full rate production of its Alpha launch vehicle, and accelerate hardware qualification for new vehicles in development.”

A busy period ahead … Firefly will soon ship its first Blue Ghost lunar lander to Florida for final preparations to launch to the Moon and deliver 10 NASA-sponsored scientific instruments and tech demo experiments to the lunar surface. Firefly also boasts a healthy backlog of missions on its small Alpha rocket. In June, Lockheed Martin announced a deal for as many as 25 Alpha launches through 2029. And there’s the Medium Launch Vehicle, a rocket that Firefly and Northrop Grumman hope to launch as soon as 2026.

ABL departs the launch industry. At one point Firefly and ABL Space were competing to develop a credible 1-ton launcher. As Firefly soared this month, however, ABL decided to go in a different direction, turning its focus to missile defense, Ars reports. The founder and president of ABL Space Systems, Dan Piemont, announced the decision on LinkedIn, adding, “We’re consolidating our operational footprint and parting ways with some talented members of our team.”

Never made it to space … ABL made its first RS1 launch attempt in January 2023 from Kodiak, Alaska, but a catastrophic fire shortly after liftoff quickly doomed the rocket. A second attempt was precluded in July of this year after an explosion during a static-fire test in Alaska. The company laid off some of its staff in August to control costs. As the company was failing in its efforts to reach orbit, the launch market was also changing, Piemont said. Although not directly mentioning SpaceX and its Falcon 9 rocket, Piemont said ABL’s ability to impact the launch industry has diminished over the last seven years. (submitted by Ken the Bin)

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ESA provides another funding boost. The European Space Agency has awarded Boost! contract extensions worth 44.2 million euros ($46.3 million) to HyImpulse, Isar Aerospace, Orbex, and Rocket Factory Augsburg, European Spaceflight reports. ESA member states adopted the Boost! initiative in late 2019. The primary aim of the initiative is to provide co-funding to support the development of commercial space transportation services. Each of the four companies has won awards of varying amounts in earlier Boost! competitions.

Getting across the finish line … According to ESA, the new funding awarded through the Boost! contract extensions is aimed at alleviating the pressure in the months before an inaugural flight when costs are high and the potential to generate revenue is limited. While the ESA press release did not disclose the specific amounts awarded to each company, announcements from the companies have revealed that Orbex will receive 5.6 million euros ($5.9 million), Isar Aerospace 15 million euros ($15.7 million), and both Rocket Factory Augsburg and HyImpulse 11.8 million euros each ($12.4 million). (submitted by Ken the Bin and EllPeaTea)

Oman preparing for its debut launch. The nation on the southeastern coast of the Arabian Peninsula is developing a spaceport in the port town of Duqm, with the aim of supporting commercial operations by the year 2030. However, the country’s National Aerospace Services Company will attempt an experimental rocket launch in December, The National reports. The port area will allow launches to the south and east over the Arabian Sea.

Seeking a niche in Mideast space … The National Aerospace Services Company did not specify a date for the launch, nor name the launch vehicle. The firm also said the launch would not be “publicly accessible” and that details about it would only be shared after the fact. The project is part of Oman’s efforts to diversify its economy and secure a competitive edge in the global space industry.

Swedish site launches its 600th rocket. The Esrange Space Center, located 200 km north of the Arctic Circle in northern Sweden, recently hit a significant milestone: It launched its 600th suborbital rocket. The MAPHEUS-15 science rocket reached an altitude of 309 km carrying a payload containing 21 different experiments, the Swedish Space Corporation reports. The payloads were later recovered by helicopter.

Orbital flights coming next? … “I am very proud of this milestone which shines a light on the many years of international collaboration at Esrange,” said Lennart Poromaa, head of Esrange Space Center. “This has been instrumental in achieving hundreds of successful rocket missions, providing invaluable access to space for scientists worldwide.” The site was established in 1966 and recently saw the construction of an orbital launch complex for future missions.

Neutron inks multi-launch contract. The launch company said earlier this month it has signed an agreement with an unnamed customer for two Neutron launches beginning in mid-2026. In a release, Rocket Lab characterized the agreement as “the beginning of a productive collaboration” that could allow Neutron to launch the commercial customer’s entire constellation. Intended to be reusable, Neutron is targeted to be capable of lifting 13 metric tons to low-Earth orbit.

Competition wanted … “Constellation companies and government satellite operators are desperate for a break in the launch monopoly,” Rocket Lab founder Peter Beck said. “They need a reliable rocket from a trusted provider, and one that’s reusable to keep launch costs down and make space more frequently accessible—and Neutron is strongly positioned to be that rocket.” With that said, Rocket Lab still has to deliver the booster. It’s currently targeting 2025 for this, but as always, bringing new launch vehicles into the world is a difficult and time-consuming process. (submitted by Ken the Bin and Tom Nelson)

Russia is pursuing its own Grasshopper rocket. Like a lot of competitors in the global launch industry, Russia, for a long time, dismissed the prospects of a reusable first stage for a rocket. As late as 2016, an official with the Russian agency that develops strategy for the country’s main space corporation, Roscosmos, concluded, “The economic feasibility of reusable launch systems is not obvious.” Well, times change as the company is developing its next-generation Amur rocket, Ars reports. Then the Falcon 9 happened.

A good name, apparently … Similar to what SpaceX did about a dozen years ago, Roscosmos is now planning to develop a prototype vehicle to test the ability to land the Amur rocket’s first stage vertically. According to the state-run news agency TASS, constructing this test vehicle will enable the space corporation to solve key challenges. “Next year preparation of an experimental stage of the (Amur) rocket, which everyone is calling ‘Grasshopper,’ will begin,” said Igor Pshenichnikov, the Roscosmos deputy director of the department of future programs. It’s not entirely clear why Russia adopted the exact same nickname as SpaceX.

Don’t forget Europe has a (much more expensive) hopper, too. The European Space Agency announced that it has awarded two new contracts to ArianeGroup to build a second Themis demonstrator and to refine the design of its Prometheus rocket engine, European Spaceflight reports. The two contracts have a combined value of 230 million euros ($241 million). The space agency has already spent hundreds of millions of euros on the project to develop a reusable engine and the Themis test vehicle, dating back more than six years. No tests have yet taken place.

Please build something, at some point … According to the agency, the funding will enable the development of a second Themis demonstrator, an upgraded Prometheus engine, and the renovation of testing and ground infrastructure. “The contract extensions signed today at ESA’s headquarters in Paris, France, are to further demonstrate and test evolutions of the Prometheus engine and the Themis demonstrator with higher and more hop-tests,” explained an ESA statement. Seems like it’s a good deal for ArianeGroup, at least. (submitted by EllPeaTea and Ken the Bin)

Starship completes its sixth flight test. SpaceX launched its sixth Starship rocket Tuesday, proving for the first time that the stainless steel ship can maneuver in space and paving the way for an even larger upgraded vehicle slated to debut on the next test flight, Ars reports. The only hiccup was an abortive attempt to catch the rocket’s Super Heavy booster back at the launch site in South Texas, something SpaceX achieved on the previous flight on October 13.

A small burn … One of the most important new things engineers wanted to test on this flight occurred about 38 minutes after liftoff. That’s when Starship reignited one of its six Raptor engines for a brief burn to make a slight adjustment to its flight path. The burn lasted only a few seconds, and the impulse was small—just a 48 mph (77 km/hour) change in velocity, or delta-V—but it demonstrated that the ship can safely deorbit itself on future missions. With this achievement, Starship will likely soon be cleared to travel into orbit around Earth and deploy Starlink Internet satellites or conduct in-space refueling experiments, two of the near-term objectives on SpaceX’s Starship development roadmap.

Vulcan’s third launch slips into 2025. The Space Force is now preparing for a 2025 Vulcan national security launch debut instead of the originally planned 2024 launches, Space News reports. Lt. Gen. Philip Garrant, head of the Space Force’s Space Systems Command, made the disclosure during a conversation with reporters on Thursday. Garrant said ULA’s Vulcan remains on track for certification. The rocket’s second certification launch in October was technically successful, with the payload reaching its intended orbit. However, an anomaly with one of the solid rocket boosters continues to be reviewed.

For now the military flies on Falcons … The anomaly itself isn’t a showstopper for certification, said Garrant. But the cumulative delays and uncertainties are a concern, he said, “as we aim to maintain assured access to space with two certified providers.” Two missions—USSF-106 and USSF-87—are currently waiting in the wings, with payloads ready but no confirmed launch dates. ULA had been targeting a November launch for USSF-106. But with only six weeks left in the year, a 2024 launch window is increasingly unlikely, said Garrant. ULA chief Tory Bruno had been promising to complete two national security launches this year. (submitted by Ken the Bin and EllPeaTea)

NASA begins stacking Artemis II booster. NASA said ground teams inside the Vehicle Assembly Building at Kennedy Space Center in Florida lifted the aft assembly of the rocket’s left booster onto the mobile launch platform, marking the beginning of operations to ‘stack’ the second Space Launch System rocket. Using an overhead crane, teams hoisted the left aft booster assembly—already filled with pre-packed solid propellant—from the VAB transfer aisle, over a catwalk dozens of stories high and then down onto mounting posts on the mobile launcher, Ars reports.

Say goodbye to September … The Artemis II mission is slated to send NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen on a 10-day flight around the far side of the Moon. A NASA spokesperson told Ars it should take around four months to fully stack the SLS rocket for Artemis II. Officially, Artemis II is projected to launch in September of next year, but there’s little chance of meeting that schedule due to an issue with Orion’s heat shield. It’s possible that, within the next month or two, NASA could announce a new target launch date for Artemis II at the end of 2025 or, more likely, in 2026.

Shotwell predicts rapid increase in Starship launches. As SpaceX made its final preparations for the sixth launch of its Starship rocket last week, the company’s chief operating officer and president spoke at a financial conference on Friday about various topics, including the future of the massive rocket and the Starlink satellite system. The Starship launch system is about to reach a tipping point, Gwynne Shotwell said, as it moves from an experimental rocket toward operational missions, Ars reports.

Those are lofty goals … “We just passed 400 launches on Falcon, and I would not be surprised if we fly 400 Starship launches in the next four years,” Shotwell said at the Baron Investment Conference in New York City. “We want to fly it a lot.” That lofty goal seems aspirational, not just because of the hardware challenges but also due to the ground systems (SpaceX currently has just one operational launch tower) as well as the difficulty of supplying that much liquid oxygen and methane for such a high flight rate. However, it’s worth noting that SpaceX will launch Starship four times this year, twice the number of Falcon Heavy missions. An acceleration of Starship is highly likely.

AST signs launch deals for its BlueBird constellation. During a third-quarter earnings call, AST SpaceMobile revealed new launch agreements with Blue Origin, the Indian Space Research Organization, and SpaceX to launch its large satellites over the course of 2025 and 2026, Spaceflight Now reports. Andrew Johnson, chief financial officer and chief legal officer at AST SpaceMobile, said that the launches “enable us to launch up to approximately 45 Block 2 BlueBird satellites, with options for additional launch vehicles for approximately 60 Block 2 BlueBird satellites.”

Glenns and Falcons … The company’s next launch will use India’s Geosynchronous Satellite Launch Vehicle. After that, the company will shift its focus to launching with Blue Origin’s New Glenn rocket and SpaceX’s Falcon 9, which are capable of carrying eight and four Block 2 BlueBird satellites, respectively. The company said its Block 2 constellation will be capable of delivering “peak data transmission speeds up to 120Mbps, supporting voice, full data, and video applications.” AST will be competing with SpaceX’s Starlink constellation in providing direct-to-cell communications. (submitted by EllPeaTea)

FAA gives SpaceX a green light for South Texas launches. A day after SpaceX launched its Starship rocket for the sixth time, the company received good news from the Federal Aviation Administration regarding future launch operations from its Starbase facility in South Texas. In a draft version of what is known as an “Environmental Assessment,” the FAA indicated that it will grant SpaceX permission to increase the number of Starship launches in South Texas to 25 per year from the current limit of five. Additionally, the company will likely be allowed to continue increasing the size and power of the Super Heavy booster stage and Starship upper stage, Ars reports.

A final decision is coming next year … The FAA regulates the launch of rockets from the United States and is responsible for the safety of people and property on the ground. The ongoing environmental review stems from SpaceX’s desire to increase the scope of its operations from South Texas and is not yet finalized. Beginning today, the FAA will open a public comment period that will close on January 17. In addition, the FAA will hold five public meetings to solicit feedback from the local community and other stakeholders. A final assessment will likely be issued sometime early next year.

ESA wants a reusable super heavy lift rocket. The European Space Agency has announced that it will commission a study to detail the development of a reusable rocket capable of delivering 60 tons to low-Earth orbit, European Spaceflight reports. The space agency believes it is necessary to have a launch system of this kind to fulfill “critical European space exploration needs beyond LEO, while providing wider space exploitation potentials to answer the growing market opportunities (e.g. mega constellations).”

Studies of studies … The agency launched its PROTEIN (Preparatory Activities for European Heavy Lift Launcher) initiative in June 2022, aiming to explore the feasibility of developing a European super heavy-lift rocket with a focus on reducing launch costs. ArianeGroup and Rocket Factory Augsburg were selected to lead studies. The European 60T LEO Reusable Launch System Pathfinder initiative seems to build upon the agency’s PROTEIN studies, even though this link is not explicitly stated. (submitted by EllPeaTea)

Next three launches

Nov. 22: New Shepard | NS-28 | Launch Site One, Texas | 15: 30 UTC

Nov. 24: Falcon 9 | Starlink 9-13 | Vandenberg Space Force Base, California | 03: 26 UTC

Nov. 24: Electron | Ice AIS Baby | Māhia Peninsula, New Zealand | 03: 55 UTC

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.

Rocket Report: Next Vulcan launch slips into 2025; Starship gets a green light Read More »

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A former Orion manager has surprisingly credible plans to fly European astronauts

She found herself wanting to build something more modern. Looking across the Atlantic, she drew inspiration from what SpaceX was doing with its reusable Falcon 9 rocket. She watched humans launch into space aboard Crew Dragon and saw that same vehicle fly again and again. “I have a huge admiration for what SpaceX has done,” she said.

Huby also saw opportunity in that company’s success. SpaceX is the only provider of crew transportation in the Western world. It’s likely that Boeing’s Starliner spacecraft will never become a serious competitor. India’s human spaceflight program is making some progress, but it’s unclear whether the Gaganyaan vehicle will serve non-Indian customers.

The opportunity she saw was to provide an alternative to SpaceX based in Europe. This would yield 100 percent of the market in Europe and offer an option to countries like Saudi Arabia, the United Arab Emirates, Australia, and other nations interested in going to space.

“I know it’s super hard, and I know it was crazy,” Huby said. “But I wanted to try.”

Starting small

She founded The Exploration Company in August 2021 with $50,000 in the bank and a small team of four people. Three years later, the company has 200 employees and recently announced that it had raised $160 million in Series B funding. It marked the first time that two European sovereign funds, French Tech and Germany-based DTCF, invested together. The news even scored a congratulatory post on LinkedIn from French President Emmanuel Macron, who wrote, “The history of space continues to be written in Europeans.”

To date, then, Huby has raised nearly $230 million. Her company has already flown a mission, the “Bikini” reentry demonstrator, on the debut flight of the Ariane 6 rocket this last summer. The small capsule was intended to demonstrate the company’s reentry technology. Unfortunately, the rocket’s upper stage failed on its deorbit burn, so the Bikini capsule remains stuck in space.

Still, the company is already hard at work on a second demonstration vehicle, about 2.5 meters in diameter, that will have more than a dozen customers on board. The spacecraft for this demonstration flight, named Mission Possible, is fully assembled, Huby said, and it will launch on SpaceX’s Transporter 14 mission next summer, likely in July. This mission was developed in 2.5 years at a cost of $20 million, plus $10 million for the launch.

A former Orion manager has surprisingly credible plans to fly European astronauts Read More »

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Russian ballistic missile attack on Ukraine portends new era of warfare

The Oreshnik missiles strike their targets at speeds of up to Mach 10, or 2.5 to 3 kilometers per second, Putin said. “The existing air defense systems around the world, including those being developed by the US in Europe, are unable to intercept such missiles.”

A global war?

In perhaps the most chilling part of his remarks, Putin said the conflict in Ukraine is “taking on global dimensions” and said Russia is entitled to use missiles against Western countries supplying weapons for Ukraine to use against Russian targets.

“In the event of escalation, we will respond decisively and in kind,” Putin said. “I advise the ruling elites of those countries planning to use their military forces against Russia to seriously consider this.”

The change in nuclear doctrine authorized by Putin earlier this week also lowers the threshold for Russia’s use of nuclear weapons to counter a conventional attack that threatens Russian “territorial integrity.”

This seems to have already happened. Ukraine launched an offensive into Russia’s Kursk region in August, taking control of more than 1,000 square kilometers of Russian land. Russian forces, assisted by North Korean troops, are staging a counteroffensive to try to retake the territory.

Singh called Russia’s invitation of North Korean troops “escalatory” and said Putin could “choose to end this war today.”

US officials say Russian forces are suffering some 1,200 deaths or injuries per day in the war. In September, The Wall Street Journal reported that US intelligence sources estimated that a million Ukrainians and Russians had been killed or wounded in the war.

The UN Human Rights Office most recently reported that 11,973 civilians have been killed, including 622 children, since the start of the full-scale Russian invasion in February 2022.

“We warned Russia back in 2022 not to do this, and they did it anyways, so there are consequences for that,” Singh said. “But we don’t want to see this escalate into a wider regional conflict. We don’t seek war with Russia.”

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NASA is stacking the Artemis II rocket, implying a simple heat shield fix

A good sign

The readiness of the Orion crew capsule, where the four Artemis II astronauts will live during their voyage around the Moon, is driving NASA’s schedule for the mission. Officially, Artemis II is projected to launch in September of next year, but there’s little chance of meeting that schedule.

At the beginning of this year, NASA officials ruled out any opportunity to launch Artemis II in 2024 due to several technical issues with the Orion spacecraft. Several of these issues are now resolved, but NASA has not released any meaningful updates on the most significant problem.

This problem involves the Orion spacecraft’s heat shield. During atmospheric reentry at the end of the uncrewed Artemis I test flight in 2022, the Orion capsule’s heat shield eroded and cracked in unexpected ways, prompting investigations by NASA engineers and an independent panel.

NASA’s Orion heat shield inquiry ran for nearly two years. The investigation has wrapped up, two NASA officials said last month, but they declined to discuss any details of the root cause of the heat shield issue or the actions required to resolve the problem on Artemis II.

These corrective options ranged from doing nothing to changing the Orion spacecraft’s reentry angle to mitigate heating or physically modifying the Artemis II heat shield. In the latter scenario, NASA would have to disassemble the Orion spacecraft, which is already put together and is undergoing environmental testing at Kennedy Space Center. This would likely delay the Artemis II launch by a couple of years.

In August, NASA’s top human exploration official told Ars that the agency would hold off on stacking the SLS rocket until engineers had a good handle on the heat shield problem. There are limits to how long the solid rocket boosters can remain stacked vertically. The joints connecting each segment of the rocket motors are certified for one year. This clock doesn’t actually start ticking until NASA stacks the next booster segments on top of the lowermost segments.

However, NASA waived this rule on Artemis I when the boosters were stacked nearly two years before the successful launch.

A NASA spokesperson told Ars on Wednesday that the agency had nothing new to share on the Orion heat shield or what changes, if any, are required for the Artemis II mission. This information should be released before the end of the year, she said. At the same time, NASA could announce a new target launch date for Artemis II at the end of 2025, or more likely in 2026.

But because NASA gave the “go” for SLS stacking now, it seems safe to rule out any major hardware changes on the Orion heat shield for Artemis II.

NASA is stacking the Artemis II rocket, implying a simple heat shield fix Read More »

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SpaceX just got exactly what it wanted from the FAA for Texas Starship launches

And there will be significant impacts. For example, the number of large trucks that deliver water, liquid oxygen, methane, and other commodities will increase substantially. According to the FAA document, the vehicle presence will grow from an estimated 6,000 trucks a year to 23,771 trucks annually. This number could be reduced by running a water line along State Highway 4 to supply the launch site’s water deluge system.

SpaceX has made progress in some areas, the document notes. For example, in terms of road closures for testing and launch activities, SpaceX has reduced the duration of closures along State Highway 4 to Boca Chica Beach by 85 percent between the first and third flight of Starship. This has partly been accomplished by moving launch preparation activities to the “Massey’s Test Site,” located about four miles from the launch site. SpaceX is now expected to need less than 20 hours of access restrictions per launch campaign, including landings.

SpaceX clearly got what it wanted

If finalized, this environmental assessment will give SpaceX the regulatory greenlight to match its aspirations for launches in at least 2025, if not beyond. During recent public meetings, SpaceX’s general manager of Starbase, Kathy Lueders, has said the company aims to launch Starship 25 times next year from Texas. The new regulations would permit this.

Additionally, SpaceX founder Elon Musk has said the company intends to move to a larger and more powerful version of the Starship and Super Heavy rocket about a year from now. This version, dubbed Starship 3, would double the thrust of the upper stage and increase the thrust of the booster stage from about 74 meganewtons to about 100 meganewtons. If that number seems a little abstract, another way to think about it is that Starship would have a thrust at liftoff three times as powerful as NASA’s Saturn V rocket that launched humans to the Moon decades ago. The draft environmental assessment permits this as well.

SpaceX just got exactly what it wanted from the FAA for Texas Starship launches Read More »