Space

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Rocket Report: Iran reaches orbit; Chinese firm achieves impressive landing test

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First and second stages of Blue Origin's

Enlarge / First and second stages of Blue Origin’s “New Glenn” test vehicle.

Blue Origin

Welcome to Edition 6.28 of the Rocket Report! There’s a lot going on in the world of launch as always, but this week I want to take this space for a personal message. I have just announced the forthcoming publication of my second book, REENTRY, on the Falcon 9 rocket, Dragon spacecraft, and development of reusable launch. Full details here. I worked very hard to get the inside story.

As always, we welcome reader submissions, and 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.

Europe seeks to support small launch companies. The European Space Agency and European Commission have selected five launch companies to participate in a new program to provide flight opportunities for new technologies, a sign of a greater role the European Union intends to play in launch, Space News reports. The effort seeks to stimulate demand for European launch services by allowing companies to compete for missions in the European Union’s In-Orbit Demonstration and Validation technology program. Proposals for the program’s first phase are due to ESA at the end of February.

Getting a golden ticket … The agency expects to select up to three companies for initial contracts with a combined value of 75 million euros ($82 million) to begin design work on those vehicles. Four of the companies selected for the “Flight Ticket Initiative” are startups working on small launch vehicles: Isar Aerospace, Orbex, PLD Space, and Rocket Factory Augsburg. None of them has yet conducted an orbital launch, but they expect to do so within the next two years. The fifth company was Arianespace, which will offer rideshare launches on its Vega C and Ariane 6 rockets. (submitted by Ken the Bin and EllPeaTea)

Iran successfully launches Qaem 100 rocket. Iran said Saturday it had conducted a successful satellite launch into its highest orbit yet, the latest for a program the West fears improves Tehran’s ballistic missiles, the Associated Press reports. The Iranian Soraya satellite was placed in an orbit at some 750 kilometers (460 miles) above the Earth’s surface with its three-stage Qaem 100 rocket, the state-run IRNA news agency said. It did not immediately acknowledge what the satellite did, though telecommunications minister Isa Zarepour described the launch as having a 50-kilogram (110-pound) payload.

Qaem’s first orbital flight … The United States has previously said Iran’s satellite launches defy a UN Security Council resolution and called on Tehran to undertake no activity involving ballistic missiles capable of delivering nuclear weapons. UN sanctions related to Iran’s ballistic missile program expired last October. Iran has always denied seeking nuclear weapons and says its space program, like its nuclear activities, is for purely civilian purposes. This was the third launch of the Qaem rocket, which can loft up to 80 kg to low-Earth orbit. A suborbital test flight in 2022 was successful, but the first orbital attempt last March failed. (submitted by Ken the Bin)

The easiest way to keep up with Eric Berger’s space reporting is to sign up for his newsletter, we’ll collect his stories in your inbox.

Chinese firm tests vertical landing. Chinese launch startup Landspace executed a first vertical takeoff and vertical landing with a test article Friday at a launch and recovery site at Jiuquan spaceport, Space News reports. The methane-liquid oxygen test article reached an altitude of around 350 meters during its roughly 60-second flight before setting down in a designated landing area. The landing had an accuracy of about 2.4 meters and a landing speed of less than 1 meter per second, the company said.

Part Starship, part Falcon 9 … The test is part of the development of the stainless-steel Zhuque-3 rocket first announced in November 2023. The company is aiming for the first flight of Zhuque-3 next year. It is an ambitious project: The rocket is intended to have a payload capacity of 21 tons to low-Earth orbit in expendable mode, and 18.3 tons when the rocket is recovered downrange. If Zhuque-3 comes to pass—and these are promising early results—this would be the closest thing to a Falcon 9 rocket anyone has yet developed. (submitted by Ken the Bin)

Rocket Report: Iran reaches orbit; Chinese firm achieves impressive landing test Read More »

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LIGO goes to space: ESA to proceed with LISA gravitational wave detector

astronomy, cosmology, ESA, gravitational waves, LIGO, Lisa, Science, Space / /

Let’s go LISA —

A gravitational wave detector in space will be sensitive to unexplored phenomena.

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Image of three spacecraft with red lines connecting them.

Enlarge / The LISA project will consist of three spacecraft in a triangular configuration, exchanging lasers.

On Thursday, the European Space Agency’s Science Programme Committee gave the go-ahead to the Laser Interferometer Space Antenna, or LISA project. This would mean the construction of the mission’s three spacecraft could begin as early as a year from now. While the interferometer would follow the same basic principles as the ground-based LIGO (Laser Interferometer Gravitational-Wave Observatory) experiment that first detected gravitational waves, the hardware would be placed 2.5 million kilometers apart, making it sensitive to an entirely new range of astronomical phenomena.

Proven tech

Existing gravitational wave detectors rely on bouncing lasers back and forth between distant mirrors before recombining them to produce an interference pattern. Anything that alters the position of the mirrors—from the rumble of a large truck to the passing of gravitational waves—will change the interference pattern. Having detectors at distant sites helps us eliminate cases of local noise, allowing us to detect astronomical events.

The detectors we’ve built on Earth have successfully picked up gravitational waves generated by the mergers of compact objects like neutron stars and black holes. But their relatively compact size means that they can only capture high-frequency gravitational waves, which are only produced in the last few seconds before a merger takes place.

To capture more of the process, we need to detect low-frequency gravitational waves. And that means a much larger distance between the interferometer’s mirrors and an escape from the seismic noise of Earth. It means going to space.

The LISA design consists of an outer shell of a spacecraft that absorbs the jostling of the dust and cosmic rays that tear through our Solar System and powers a laser strong enough to reach 2.5 million kilometers. It will also house a telescope to focus incoming laser light, which will spread from its normal tight beam over these distances. Floating freely within is a mass that, isolated from the rest of the Universe, should provide a stable platform to pick up any changes in the laser. Three spacecraft trail the Earth in its orbit around the Sun, each sending lasers to two others in a triangular configuration.

That may sound like science fiction, but ESA has already sent a pathfinder mission to space to test the technology. And it performed 20 times better than planned, providing three times the sensitivity needed for LISA to work. So there’s no obvious sticking point.

Going supermassive

Once it gets to space, it should immediately pick up the impending collisions that have resulted in LIGO detections. But it will spot them as much as a full year in advance and allow us to track where the event horizons touch. This would allow us to track the physics of their interactions over time and to potentially point optical telescopes in the right direction ahead of collisions so that we can determine whether any of these events produce radiation. (This may allow us to assign causes to some classes of events we’ve already detected via the photons.)

But that’s only part of the benefit. Due to their far larger size, supermassive black hole mergers are only detectable at lower frequencies. Since these are expected to happen following many galaxy mergers, it’s hoped we’ll be able to capture them.

Perhaps the most exciting prospect is that LISA could pick up the early gravitational fluctuations formed in the immediate aftermath of the Big Bang. That has the potential to provide a new view into the earliest history of the Universe, one that’s completely independent of the cosmic microwave background.

Now that I have you all as excited as I am, I regret to inform you that the launch date isn’t planned until 2034. So, hang in there for a decade—I promise it will be worth it.

LIGO goes to space: ESA to proceed with LISA gravitational wave detector Read More »

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The amazing helicopter on Mars, Ingenuity, will fly no more

mars helicopter, Science, Space / /

The greatest —

Ingenuity has spent more than two hours flying above Mars since April 2021.

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A close-up view of <em>Ingenuity</em> on Mars, as seen by the <em>Perseverance</em> rover.” src=”https://cdn.arstechnica.net/wp-content/uploads/2021/11/PIA24549-800×450.jpg”></img><figcaption> <p><a data-height=Enlarge / A close-up view of Ingenuity on Mars, as seen by the Perseverance rover.

NASA/JPL-Caltech/ASU

Something has gone wrong with NASA’s Ingenuity helicopter on the surface of Mars. Although the US space agency has not made any public announcements yet, a source told Ars that the plucky flying vehicle had an accident on its last flight and broke one of its blades. It will not fly anymore. (Shortly after this article was published, NASA confirmed the end of Ingenuity‘s mission).

When it launched to Mars more than three years ago, the small Ingenuity helicopter was an experimental mission, a challenge to NASA engineers to see if they could devise and build a vehicle that could make a powered flight on another world.

This was especially difficulty on Mars, which has a very thin atmosphere, with a pressure of less than 1 percent that of Earth’s. The solution they landed on was a very light 4-lb helicopter with four blades. It was hoped that Ingenuity would make a handful of flights and provide NASA with some valuable testing data.

But it turns out that Ingenuity had other ideas. Since its deployment from the Perseverance rover in April 2021, the helicopter has flown a staggering 72 flights. It has spent more than two hours—128.3 minutes, to be precise—flying through the thin Martian air. Over that time, it flew 11 miles, or 17 km, performing invaluable scouting and scientific investigations. It has been a huge win for NASA and the Jet Propulsion Laboratory, one of the greatest spaceflight stories of this decade.

Getting on in Martian years

The vehicle has been showing signs of aging recently, however. And that’s not surprising. The fragile little flying machine has been exposed to the harsh Martian atmosphere for more than two and a half years, including bruising radiation, dust storms, and wide swings in temperature from very, very cold to sort of warm.

One week ago, during a simple hover test flight, NASA lost contact with Ingenuity for several hours. This is when it apparently broke one of its four blades. Later, mission operators restored communications by asking the Perseverance rover to perform long-duration listening sessions for Ingenuity’s signal.

Before that flight, on the helicopter’s 71st flight in early January, the helicopter was supposed to traverse a long distance of nearly 1,200 feet (358 meters), reaching an altitude of 40 feet (12 meters) and spending nearly 125 seconds airborne. NASA had sought to reposition the helicopter for future flights to survey new areas of the Martian surface. However, during that flight, Ingenuity made an unplanned early landing.

Now, the ingenious Ingenuity helicopter will fly no more. But just as the 1903 Wright Flyer is remembered for its first sustained, powered flight on Earth, Ingenuity will be long remembered for its contributions as humans sought to fly on worlds beyond our own.

The amazing helicopter on Mars, Ingenuity, will fly no more Read More »

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A Japanese spacecraft faceplanted on the Moon and lived to tell the tale

Japan, JAXA, moon, slim, Space / /
Japan's SLIM spacecraft is seen nose down on the surface of the Moon.

Japan’s SLIM spacecraft is seen nose down on the surface of the Moon.

Japan’s first lunar lander made an unsteady touchdown on the Moon last week, moments after one of its two main engines inexplicably lost power and apparently fell off the spacecraft, officials said Thursday.

About the size of a small car, the Small Lander for Investigating Moon (SLIM) landed on Friday, making Japan the fifth country to achieve a soft landing on the lunar surface. Shortly after landing, ground teams in Japan realized the spacecraft was not recharging its battery with its solar panels. The evidence at the time suggested that SLIM likely ended up in an unexpected orientation on the Moon, with its solar cells facing away from the Sun.

With the benefit of six days of data crunching and analysis, officials from the Japan Aerospace Exploration Agency (JAXA) briefed reporters Thursday on what they have learned about SLIM’s landing. Indeed, the spacecraft toppled over after touching down, with its nose planted into the lunar regolith and its rear propulsion section pointed toward space.

It turns out that SLIM overcame a lot to get to that point. In the final minute of Friday’s descent, one of SLIM’s two engines failed, leaving the craft’s sole remaining engine to bring the spacecraft in for an off-balance landing. Still, JAXA officials said the spacecraft achieved nearly all of its primary objectives. The roughly $120 million robotic mission made the most pinpoint landing on the Moon in history, just as it set out to do.

“From the spacecraft, we were able to acquire all the technical data related to navigation guidance leading to landing, which will be necessary for future pinpoint landing technology, as well as navigation camera image data during descent and on the lunar surface,” JAXA said in a statement.

One of two tiny robots released by SLIM just before landing relayed a remarkable image of the lander standing upside down a short distance away. This might be the first close-up view of a crash landing, however gentle, on another world.

One plucky bird

Based on the update JAXA released Thursday, it’s extraordinary that SLIM made it to the surface in one piece.

After launching in September and arriving at the Moon in December, SLIM lined up for a final descent to the lunar surface on Friday. Around 20 minutes before landing, the spacecraft ignited its two hydrazine-fueled rocket engines for a braking maneuver to drop out of lunar orbit.

JAXA officials said everything went according to plan in the initial phases of the descent. The spacecraft pitched over from a horizontal orientation to begin a final vertical descent to the surface. SLIM’s guidance computer was preloaded with a map of the landing zone, and an onboard navigation camera took pictures of the Moon’s surface throughout the landing sequence. The spacecraft’s computer used these images to compare to the map, allowing SLIM to autonomously correct its course along the way.

The SLIM spacecraft was built by Mitsubishi Electric under contract with JAXA.

Enlarge / The SLIM spacecraft was built by Mitsubishi Electric under contract with JAXA.

JAXA

But at an altitude of around 160 feet (50 meters), something went wrong with the spacecraft’s propulsion system. Less than a minute before touchdown, one of the engines suddenly lost thrust, and moments later, a down-facing navigation camera caught a glimpse of what appeared to be one of the engine nozzles falling away from the spacecraft. JAXA said engineers believe the engine failure was likely caused by “some external factor other than the main engine itself.” Officials are still investigating to determine the root cause.

The spacecraft continued descending on the power of its remaining engine, but it became more difficult to control the lander. The thrust from the single engine imparted a sideways motion to the spacecraft. Normally, SLIM would have used thrusters to tilt itself from the vertical orientation necessary for the final descent and into a position to plop itself on the lunar surface along the spacecraft’s long axis. SLIM had five crushable landing legs to absorb the force of the gentle impact.

While this two-stage landing sequence was the plan, JAXA said Thursday that the spacecraft “touched the ground in an almost straight standing position with lateral velocity.” The vertical speed at touchdown was about 3.1 mph (1.4 meters per second), slightly slower than the expected descent rate.

“Because the ground contact conditions such as lateral speed and attitude exceeded the specification range, a large attitude change occurred after touchdown, and the aircraft settled in a different attitude than expected,” JAXA said.

In other words, the squirrelly landing caused the spacecraft to tip over. SLIM settled in a bottoms-up position on a shallow slope rather than on its side. Its solar panel wasn’t facing up but was instead pointed toward the west, away from the Sun’s position in the eastern morning sky at the landing site.

A Japanese spacecraft faceplanted on the Moon and lived to tell the tale Read More »

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Secret military space programs can be a little less secret, Pentagon says

classified information, military space, Pentagon, Space, space force / /
A delegation of French military officers visited the Combined Space Operations Center in 2022 at Vandenberg Space Force Base, California.

Enlarge / A delegation of French military officers visited the Combined Space Operations Center in 2022 at Vandenberg Space Force Base, California.

Late last year, Deputy Secretary of Defense Kathleen Hicks signed a memo to overhaul a decades-old policy on how the Pentagon keeps sensitive military space programs secret. However, don’t expect defense officials to openly discuss everything they’re doing to counter China and Russia in orbit.

John Plumb, assistant secretary of defense for space policy, revealed the policy change in a roundtable with reporters on January 17. For many years, across multiple administrations, Pentagon officials have lamented their inability to share information with other countries and commercial partners. Inherently, they argued, this stranglehold on information limits the military’s capacity to connect with allies, deter adversaries, and respond to threats in space.

In his statement last week, Plumb said this new policy “removes legacy classification barriers that have inhibited our ability to collaborate across the US government and also with allies on issues related to space.”

But Plumb was careful to point out that the memo from Hicks calls for “declassification, not unclassification” of military space programs. “So think of it as reducing classification.” Effectively, this means the Pentagon can make sensitive information available to people with lower security clearances. More eyes on a problem usually mean better solutions.

New policy for a new century

Some of the Pentagon’s most secret space technologies are part of Special Access Programs (SAPs), where information is highly compartmentalized, and only a few officials know all facets of the program. With SAPs, it’s difficult or impossible to share information with allies and partners, and sometimes officials run into roadblocks even discussing the programs with different parts of the Defense Department.

“Overall, the department does overclassify,” Hicks told reporters in November.

Generally, it’s easier to assign a classification level to a document or program than it is to change the classification level. “The originator of a document, usually a foreign policy or national security staff member, decides if it needs to be classified,” wrote Bruce Riedel, a 30-year veteran of the CIA and a former advisor to four presidents. “In almost all cases this is a simple decision. Has its predecessors been classified? If so, classify.”

The government has periodic reviews to determine whether something still needs to be classified, but most of the time, secret documents take decades to be reviewed. If they are released at all, they generally have value only as part of the historical record.

The declassification memo signed by Hicks is, itself, classified, Plumb said. Hicks signed it at the end of last year.

“What the classification memo does generally is it … really completely rewrites a legacy document that had its roots 20 years ago,” Plumb said. “And it’s just no longer applicable to the current environment that involves national security space.”

The Pentagon has identified China as the paramount national security threat to the United States. Much of what the Pentagon is doing in space is geared toward maintaining the US military’s competitive advantage against China or responding to China in cases where Chinese capabilities may threaten US assets in orbit.

This overarching focus on China touches on all military space programs and the NRO’s fleet of spy satellites. The military is launching new constellations of satellites designed to detect and track hypersonic missiles, demonstrating their ability to quickly get a satellite into orbit, and is interested in using commercial space capabilities from US industry, ranging from in-space refueling to broadband communications.

“Our network of allies and partners is an asymmetric advantage and a force multiplier that neither China nor Russia could ever hope to match,” Plumb said.

Officials have said the threat environment requires the military to be more agile. It’s more vital to collaborate with allies and commercial partners.

Secret military space programs can be a little less secret, Pentagon says Read More »

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Sierra Space is blowing up stuff to prove inflatable habitats are safe

Commercial space, inflatable module, Sierra space, Space, space stations / /
Sierra Space's 300 cubic meter inflatable habitat burst at 77 psi, five times the pressure it would need to handle in space.

Enlarge / Sierra Space’s 300 cubic meter inflatable habitat burst at 77 psi, five times the pressure it would need to handle in space.

Sierra Space says it has demonstrated in a ground test that a full-scale inflatable habitat for a future space station can meet NASA’s recommended safety standards, clearing a technical gate on the road toward building a commercial outpost in low-Earth orbit.

During a December test at NASA’s Marshall Space Flight Center in Alabama, Sierra Space’s 300 cubic meter inflatable structure withstood five times the pressure it would need to handle in space. The so-called ultimate burst pressure test was designed to measure the limits of the soft goods technology Sierra Space is developing alongside ILC Dover, which also built spacesuits for NASA.

The 27-foot-diameter (8.2-meter) inflatable structure burst at 77 psi, exceeding NASA’s recommended safety standard of 60.8 psi, which is four times the module’s real-life operating pressure at 15.2 psi.

Perhaps best known for developing the Dream Chaser spaceplane, Colorado-based Sierra Space also manufactures satellites and is one of several companies in the mix for helping build a new commercial space station to replace the International Space Station.

“We’re ecstatic over the results,” said Shawn Buckley, senior director of engineering and chief technologist for Sierra Space’s EarthSpace Systems division. “Transitioning from our from our sub-scale articles, we’ve done a series of tests to validate our architecture. And being able to go into our first full-scale LIFE (Large Integrated Flexible Environment) burst test, to meet the safety factor by 27 percent, was just an amazing accomplishment by the team.”

Sierra Space is partnering with Blue Origin on a commercial space station concept called Orbital Reef. If the companies see it to fruition, Orbital Reef could become a hub for research, manufacturing, tourism, and other applications in low-Earth orbit.

The inflatable technology from Sierra Space is similar to the work performed by Bigelow Aerospace, which pioneered inflatable habitat tech for more than 20 years before laying off its entire workforce in 2020. Buckley worked on Bigelow’s inflatable habitat technology for more than 10 years, then joined Lockheed Martin for two years. In 2022, he took a leadership position overseeing Sierra Space’s space station work.

Bigelow’s design centered on a 330 cubic meter inflatable habitat, while Sierra Space’s design is slightly smaller in volume. Buckley said he couldn’t state definitively whether the LIFE burst test in December was the largest such test of an inflatable habitat design, due to restrictions about what he could say about his previous work at other companies.

“I will say that this is the largest full-scale habitat that has been publicly announced in this architecture being tested,” he told Ars in an interview.

Sierra Space is blowing up stuff to prove inflatable habitats are safe Read More »

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NASA urged Astrobotic not to send its hamstrung spacecraft toward the Moon

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A camera on Astrobotic's Peregrine spacecraft captured this view of a crescent Earth during its mission.

Enlarge / A camera on Astrobotic’s Peregrine spacecraft captured this view of a crescent Earth during its mission.

Astrobotic knew its first space mission would be rife with risks. After all, the company’s Peregrine spacecraft would attempt something never done before—landing a commercial spacecraft on the surface of the Moon.

The most hazardous part of the mission, actually landing on the Moon, would happen more than a month after Peregrine’s launch. But the robotic spacecraft never made it that far. During Peregrine’s startup sequence after separation from its United Launch Alliance Vulcan rocket, one of the spacecraft’s propellant tanks ruptured, spewing precious nitrogen tetroxide into space. The incident left Peregrine unable to land on the Moon, and it threatened to kill the spacecraft within hours of liftoff.

“What a wild adventure we were just on, not the outcome we were hoping for,” said John Thornton, CEO of Astrobotic.

Astrobotic’s control team, working out of the company’s headquarters in Pittsburgh, swung into action to save the spacecraft. The propellant leak abated, and engineers wrestled control of the spacecraft to point its solar arrays toward the Sun, allowing its battery to recharge. Over time, Peregrine’s situation stabilized, although it didn’t have enough propellant remaining to attempt a descent to the lunar surface.

Peregrine continued on a trajectory out to 250,000 miles (400,000 kilometers) from Earth, about the same distance as the Moon’s orbit. Astrobotic’s original flight plan would have taken Peregrine on one long elliptical loop around Earth, then the spacecraft would have reached the Moon during its second orbit.

On its way back toward Earth, Peregrine was on a flight path that would bring it back into the atmosphere, where it would burn up on reentry. That meant Astrobotic had a decision to make. With Peregrine stabilized, should they attempt an engine burn to divert the spacecraft away from Earth onto a trajectory that could bring it to the vicinity of the Moon? Or should Astrobotic keep Peregrine in line to reenter Earth’s atmosphere and avoid the risk of sending a crippled spacecraft out to the Moon?

Making lemonade out of lemons

This was the first time Astrobotic had flown a space mission, and its control team had much to learn. The malfunction that caused the propellant leak appears to have been with a valve that did not properly reseat during the propulsion system’s initialization sequence. This valve activated to pressurize the fuel and oxidizer tanks with helium.

When the valve didn’t reseat, it sent a “rush of helium” into the oxidizer system, Thornton said. “I describe it as a rush because it was very, very fast. “Within a little over a minute, the pressure had risen to the point in the oxidizer side that it was well beyond the proof limit of the propulsion tank. We believe at that point the tank ruptured and led to, unfortunately, a catastrophic loss of propellant … for the primary mission.”

Thornton described the glum mood of Astrobotic’s team after the propellant leak.

“We were coming from the highest high of a perfect launch and came down to the lowest low, when we found out that the spacecraft no longer had the helium and no longer had the propulsion needed to attempt the Moon landing,” he said. “What happened next, I think, was pretty remarkable and inspiring.”

In a press briefing Friday, Thornton outlined the obstacles Astrobotic’s controllers overcame to keep Peregrine alive. Without a healthy propulsion system, the spacecraft’s solar panels were not pointed at the Sun. With a few minutes to spare, one of Astrobotic’s engineers, John Shaffer, devised a solution to reorient the spacecraft to start recharging its battery.

As Peregrine’s oxidizer tank lost pressure, the leak rate slowed. At first, it looked like the spacecraft might have only hours of propellant remaining. Then, Astrobotic reported on January 15 that the leak had “practically stopped.” Mission controllers powered up the science payloads aboard the Peregrine lander, proving the instruments worked and demonstrating the spacecraft could have returned data from the lunar surface if it landed.

The small propulsive impulse from the leaking oxidizer drove Peregrine slightly off course, putting it on a course to bring it back into Earth’s atmosphere. This set up Astrobotic for a “very difficult decision,” Thornton said.

Astrobotic's first lunar lander, named Peregrine, at the company's Pittsburgh headquarters.

Enlarge / Astrobotic’s first lunar lander, named Peregrine, at the company’s Pittsburgh headquarters.

Nudging Peregrine off its collision course with Earth would have required the spacecraft to fire its main engines, and even if that worked, the lander would have needed to perform more maneuvers to get close to the Moon. A landing was still out of the question, but Thornton said there was a small chance Astrobotic could have guided Peregrine toward a flyby or impact with the Moon.

“The thing we were weighing was, ‘Should we send this back to Earth, or should we take the risk to operate it in cislunar space and see if we can send this out farther?'” Thornton said.

NASA urged Astrobotic not to send its hamstrung spacecraft toward the Moon Read More »

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Japan becomes the fifth nation to land a spacecraft on the Moon

Japan, JAXA, lunar exploration, moon, slim, Space / /
Artist's illustration of the SLIM spacecraft on final descent to the Moon.

Enlarge / Artist’s illustration of the SLIM spacecraft on final descent to the Moon.

The Japanese space agency’s first lunar lander arrived on the the Moon’s surface Friday, but a power system problem threatens to cut short its mission.

Japan’s robotic Smart Lander for Investigating Moon (SLIM) mission began a 20-minute final descent using two hydrazine-fueled engines to drop out of orbit. After holding to hover at 500 meters and then 50 meters altitude, SLIM pulsed its engines to fine-tune its vertical descent before touching down at 10: 20 am EST (15: 20 UTC).

The Japan Aerospace Exploration Agency (JAXA), which manages the SLIM mission, streamed the landing live on YouTube. About two hours after the touchdown, JAXA officials held a press conference to confirm the spacecraft made a successful landing, apparently quite close to its target. SLIM aimed to settle onto the lunar surface adjacent to a nearly 900-foot (270-meter) crater named Shioli, located in a region called the Sea of Nectar on the near side of the Moon.

But ground controllers at JAXA’s Sagamihara Campus in the western suburbs of Tokyo soon discovered the lander was in trouble. Its solar array was not generating electricity after landing, and without power, officials expected SLIM to drain its battery within a few hours.

In what could be the mission’s final hours, engineers prioritized downloading data from SLIM, including imagery taken during its descent, and potentially new pictures captured from the lunar surface. Official reported good communications links between SLIM and ground stations on Earth.

“Minimum success”

Even if SLIM falls silent, the mission has achieved its minimum success criteria, JAXA said. The SLIM mission is a technology demonstrator developed to verify the performance of a new vision-based navigation system needed for precision Moon landings.

“First and foremost, landing was made and communication was established,” said Hiroshi Yamakawa, JAXA’s president. “So a minimum success was made in my view.”

One of the core goals of the SLIM mission was to land within 100 meters (about 330 feet) of its bullseye. This accomplishment would be a remarkable improvement in lunar landing precision, which typically is measured in miles or kilometers. It would also be an enabling capability for future Moon missions because it lays the foundation for future spacecraft to land closer to lunar resources, such as water ice.

Hitoshi Kuninaka, director general of JAXA’s Institute of Space and Astronautical Science, said it will take about a month for engineers to fully analyze data from SLIM and determine the precision of the landing.

“But as you saw on the real-time data livestream, SLIM did trace the expected course, so my personal impression is that we probably have been able to more or less achieve a high precision landing within 100-meter accuracy,” Kuninaka said. “So the solar cell state is unlikely to impact the full success criteria.”

Kuninaka said ground teams have seen no evidence of any damage to the solar array on SLIM. It’s possible the lander is sitting in an orientation with its solar cells facing away from the Sun. All other components of SLIM, including its propulsion, thermal, and communication systems, all appear to be functioning well.

SLIM launched September 6 on top of a Japanese H-IIA rocket, riding to orbit alongside an X-ray astronomy telescope. The spacecraft took a long route to get to the Moon, trading time for fuel to preserve propellant for Friday’s landing attempt. SLIM entered orbit around the Moon on December 25, then completed several maneuvers to settle into a low-altitude orbit in preparation for the descent to the surface.

A milestone moment for Japan

The landing of SLIM made Japan the fifth country to soft-land a spacecraft on the Moon, following the Soviet Union, the United States, China, and India. But landing on the Moon is a hazardous thing to do. Three commercial landers similar in scale to SLIM failed to safely reach the lunar surface over the last five years.

One of those was developed by a Japanese company called ispace. Most recently, the US company Astrobotic attempted to send its Peregrine lander to the Moon, but a propellant leak cut short the mission. After looping more than 200,000 miles into space, Peregrine reentered Earth’s atmosphere Wednesday, where it was expected to burn up 10 days after its launch.

A Russian lander crashed into the Moon in August, and India’s first lunar lander failed in 2019. India tried again last year and made history when Chandrayaan 3 safely landed.

This artist's illustration shows the SLIM spacecraft descending toward the Moon and ejecting two deployable robots onto the lunar surface.

Enlarge / This artist’s illustration shows the SLIM spacecraft descending toward the Moon and ejecting two deployable robots onto the lunar surface.

Japan’s SLIM mission was primarily designed to test out new guidance algorithms and sensors, rather than pursuing scientific objectives. The technologies riding to the Moon on SLIM could be used on future spacecraft bound for the Moon. SLIM cost the Japanese government approximately 18 billion yen ($121 million) to design, develop, and build, according to JAXA.

The spacecraft is modest in size, measuring nearly 8 feet (2.4 meters) tall and nearly 9 feet (2.7 meters) across. Without propellant in its tanks, SLIM has a mass of roughly 660 pounds (200 kilograms).

“The start of the deceleration to the landing on the Moon’s surface is expected to be a breathless, numbing 20 minutes of terror!” said Kushiki Kenji, sub-project manager for the SLIM mission, before the landing.

Japan becomes the fifth nation to land a spacecraft on the Moon Read More »

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Rocket Report: A new estimate of Starship costs; Japan launches spy satellite

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A bigger tug —

One space tug company runs into financial problems; another says go big or go home.

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An H-IIA rocket lifts off with the IGS Optical-8 spy satellite.

Enlarge / An H-IIA rocket lifts off with the IGS Optical-8 spy satellite.

Mitsubishi Heavy Industries

Welcome to Edition 6.27 of the Rocket Report! This week, we discuss an intriguing new report looking at Starship. Most fascinating, the report covers SpaceX’s costs to build a Starship and how these costs will come down as the company ramps up its build and launch cadence. At the other end of the spectrum, former NASA Administrator Mike Griffin has a plan to get astronauts back to the Moon that would wholly ignore the opportunities afforded by Starship.

As always, we welcome reader submissions, and 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.

The problem at America’s military spaceports. The Biden administration is requesting $1.3 billion over the next five years to revamp infrastructure at the Space Force’s ranges in Florida and California, Ars reports. This will help address things like roads, bridges, utilities, and airfields that, in many cases, haven’t seen an update in decades. But it’s not enough, according to the Space Force. Last year, Cape Canaveral was the departure point for 72 orbital rocket launches, and officials anticipate more than 100 this year. The infrastructure and workforce at the Florida spaceport could support about 150 launches in a year without any major changes, but launch activity is likely to exceed that number within a few years.

Higher fees incoming … Commercial launch companies operating from Cape Canaveral Space Force Station, Florida, or Vandenberg Space Force Base, California, pay fees to the Space Force to reimburse for direct costs related to rocket launches. These cover expenses like weather forecast services, surveillance to ensure airplanes and boats stay out of restricted areas, and range safety support. “What that typically meant was anything we did that was specifically dedicated to that launch,” said Col. James Horne, deputy commander of the Space Force’s assured access to space directorate. This is about to change after legislation passed by Congress in December allows the Space Force to charge indirect fees to commercial providers. This money will go into a fund to pay for maintenance and upgrades to infrastructure used by all launch companies at the spaceports.

Momentus is running out of money. Momentus, a company that specializes in “last mile” satellite delivery services, announced on January 12 that it is running out of money and does not have a financial lifeline, CNBC reports. The company was once valued at more than $1 billion before going public via a Special Purpose Acquisition Company (SPAC) in 2021 but now has a market capitalization of less than $10 million. Momentus has developed a space tug called Vigoride, designed to place small satellites into bespoke orbits after deploying from a larger rocket on a rideshare mission, such as a SpaceX Falcon 9. Now, Momentus is abandoning plans for its next mission that was due for launch in March. In December, the company laid off about 20 percent of its workforce to reduce costs.

Fatal blow? … Momentus may have received a potentially fatal blow after losing the US Space Development Agency’s recent competition for 18 so-called Tranche 2 satellites, Aviation Week reports. Instead, the SDA made recent satellite manufacturing contract awards to Rocket Lab, L3Harris, Lockheed Martin, and Sierra Space. On Wednesday, Momentus announced it closed a $4 million stock sale. This should keep Momentus afloat for a while longer but won’t provide the level of capital needed to undertake any significant manufacturing or technical development work. (submitted by Ken the Bin)

The easiest way to keep up with Eric Berger’s space reporting is to sign up for his newsletter, we’ll collect his stories in your inbox.

Orbex may go bigger. UK-based launch startup Orbex hasn’t yet flown its small satellite launcher, called Prime, but is already looking at what’s next, according to reports by European Spaceflight and the Financial Times. New Orbex CEO Phil Chambers, who was officially appointed earlier this month, told the Financial Times that the company was already discussing the possibility of developing a larger vehicle. Speaking to European Spaceflight, Chambers described the business model to deliver orbital launch services with Prime as “robust.” Despite this, he admitted that the small launch industry was only a small sliver of the overall launch market.

Learning to walk before running … While future growth is on Orbex’s radar, its near-term focus is completing construction of a spaceport in Scotland, launching a maiden flight of Prime, and delivering on the six flights the company has already sold. The two-stage Prime rocket, fueled by “bio-propane,” will be capable of hauling a payload of approximately 180 kilograms (nearly 400 pounds) into low-Earth orbit. But Orbex has been shy about releasing updates on the progress of the Prime rocket’s development since unveiling a full-scale mock-up of the launch vehicle in 2022. Last year, the CEO who led Orbex since its founding resigned. Its most recent significant funding round was valued at 40.4 million pounds in late 2022. (submitted by Ken the Bin)

Rocket Report: A new estimate of Starship costs; Japan launches spy satellite Read More »

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Axiom, SpaceX launch third all-private crew mission to space station

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Flying private —

A US-Spanish dual citizen commands a crew of Italian, Swedish, and Turkish astronauts.

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A Falcon 9 rocket lifts off from NASA's Kennedy Space Center to begin the Ax-3 commercial crew mission.

Enlarge / A Falcon 9 rocket lifts off from NASA’s Kennedy Space Center to begin the Ax-3 commercial crew mission.

Stephen Clark/Ars Technica

For the third time, an all-private crew is heading for the International Space Station. The four-man team lifted off from NASA’s Kennedy Space Center in Florida aboard a SpaceX Falcon 9 rocket Thursday, kicking off a 36-hour pursuit of the orbiting research laboratory. Docking is scheduled for Saturday morning.

This two-week mission is managed by Houston-based Axiom Space, which is conducting private astronaut missions to the ISS as a stepping stone toward building a fully commercial space station in low-Earth orbit by the end of this decade.

Axiom’s third mission, called Ax-3, launched at 4: 49 pm EST (21: 49 UTC) Thursday. The four astronauts were strapped into their seats inside SpaceX’s Dragon Freedom spacecraft atop the Falcon 9 rocket. This is the 12th time SpaceX has launched a human spaceflight mission, and could be the first of five Dragon crew missions this year.

The Falcon 9 steered northeast from the Kennedy Space Center to line up with the flight track of the International Space Station. After darting through cloud cover, the rocket’s reusable first stage detached two-and-a-half minutes after liftoff to begin a descent back to Cape Canaveral for landing. The upper stage ignited a single engine to carry the Dragon capsule into orbit.

No retirement party

In remarks radioed to the ground soon after the launch, Ax-3 commander Michael López-Alegría describe the sensations of launch as “acceleration, a little bit of vibration, just a sense that you’re going fast. Wow, what a thrill!”

López-Alegría is a Spanish-born astronaut and US Navy veteran. He is one of the most experienced astronauts in history, and Ax-3 marks his sixth flight to space. López-Alegría, 65, retired from NASA in 2012 after four space shuttle missions. He worked as a consultant and commercial spaceflight advocate, then joined Axiom in 2017, and commanded the company’s first private astronaut flight in 2022.

So why keep up a grueling training schedule at an age when most commercial airline pilots face mandated retirement?

“It never gets old,” López-Alegría said in a prelaunch press conference. “I think I have more appreciation with every launch that approaches … The first time you go, you’re just hanging on for dear life and and enjoying the ride. But I think you appreciate each one a little bit more, especially when you realize just how rare and opportunity it is, so I’m happy to keep doing this.”

He is alternating commands of Axiom missions with Peggy Whitson, another retired NASA astronaut.

“Axiom would definitely like to continue doing private astronaut missions. We’ll probably have other commanders in the future, but as long as they ask me to fly, my hand will be raised,” López-Alegría said. He’s the first astronaut to fly on SpaceX’s Dragon spacecraft twice.

“I think you’re demonstrating the ultimate in reuse—a reused commander, a reused Dragon, and a reused Falcon, or maybe flight-experienced is a better word,” joked Bill Gerstenmaier, a SpaceX executive serving as chief engineer for Thursday’s launch.

Pilot Walter Villadei sat to López-Alegría’s right during the climb into orbit. He is a colonel in the Italian Air Force. Turkey’s first astronaut, Alper Gezeravcı, and Swedish test pilot pilot Marcus Wandt round out the Ax-3 crew. They will temporarily join the long-duration residents living on the space station, including four crew members who flew on a Dragon to the complex in August to begin a six-month stay.

Cornering the government market

Villadei, Gezeravcı, and Wandt are flying to the space station through contracts between their governments and Axiom. The astronauts, all military officers, will perform scientific experiments developed by their nation’s researchers, and participate in education and outreach events from orbit.

More than 30 research investigations are flying on Ax-3, ranging from biology physiology experiments looking at how microgravity affects the human body, to technology demonstrations and Earth science. For example, the Italian Air Force developed a software tool it will test on Ax-3 to provide space debris and space weather warnings to the space station. Turkey is sending up experiments in the fields of genetics and metallurgy. Sweden and the European Space Agency sponsor experiments in brain research, remote control and AI, and stem cells.

Michael López-Alegría, Alper Gezeravcı, Marcus Wandt, and Walter Villadei pose inside SpaceX's crew access arm at Launch Complex 39A in Florida.

Enlarge / Michael López-Alegría, Alper Gezeravcı, Marcus Wandt, and Walter Villadei pose inside SpaceX’s crew access arm at Launch Complex 39A in Florida.

SpaceX

But there’s an unmistakable element of national pride intertwined with these scientific objectives.

Villadei is flying under the Italian flag through an agreement between the Italian government and Axiom, whereas most Italian astronauts have historically flown under the umbrella of the European Space Agency. He previously soared into space on a suborbital flight on Virgin Galactic’s spaceplane, logging a few minutes of microgravity. He was one of three Italian Air Force service members on the Virgin Galactic flight last June.

“This mission is very important for Italy,” Villadei said. “It’s a fundamental step in our national space strategy.”

Gezeravcı’s flight is historic in the sense that he is the first Turkish citizen to travel into space. “We have been long waiting for this mission to become real,” he said. “I’m really honored to take this role in this mission and to be able to make it real.”

Wandt’s mission was made possible through an agreement between ESA and the Swedish National Space Agency. ESA then finalized an agreement with Axiom to secure Wandt’s seat on Ax-3.

Wandt’s presence on the crew marks a first for ESA. It’s the first time the space agency has flown one of its astronauts to orbit with a commercial company, rather than an intergovernmental agreement with the United States or Russia. He was one of 17 astronauts ESA selected in 2022, but he joined ESA’s ranks as a reserve astronaut, meaning he would continue his career as a test pilot at Saab Aeronautics until his selection for a space mission.

He didn’t have to wait long. “This additional flight came up and Sweden was very decisive in this and came together quickly with industry, the armed forces, government, and together with ESA made this happen together with Axiom,” Wandt said.

ESA has six active astronauts who have flown in space, plus five new career astronauts and 12 reserves selected in 2022. Commercial flight opportunities like this one with Axiom enable more Europeans to access space. An ESA reserve astronaut from Poland could launch on an Axiom mission later this year.

“We have our astronaut corps, who represent the spine of our activities in human spaceflight,” said Daniel Neuenschwander, ESA’s director of human and robotic exploration, in an interview with Ars on Thursday. “But we selected also these reserves, which is a kind of pool of talent, where we seize the opportunities which come on top. It allows us to do more activities in human spaceflight.”

Axiom doesn’t publicize seat prices for its missions to the space station, but in the past, they have reportedly cost around $55 million. Swedish media last year reported Sweden expanded its investment in ESA by more than 400 million Swedish krona, or more than $38 million at current exchange rates, to enable Wandt’s spaceflight opportunity.

Axiom officials view flying government-backed astronauts as a lucrative market. It’s distinct from the conventional image of wealthy space tourists who pay their own way into orbit. There is, of course, an element of that in Axiom’s business, too. Axiom’s first mission in 2022 flew three self-paying private astronauts, and Ax-2 last year flew a mixed crew consisting of an Axiom commander, a US businessman, and two Saudi astronauts flying on a government-sponsored mission.

NASA is also supporting these private astronaut missions. The US space agency opened up the International Space Station to private visitors flying on all-commercial missions in 2019. It’s a cornerstone of NASA’s strategy to foster a commercial market for human spaceflight in low-Earth orbit, with an eye toward eventually building a business case for a privately-owned space station to replace the ISS after its planned retirement in 2030.

Axiom, SpaceX launch third all-private crew mission to space station Read More »

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Axiom and SpaceX are disrupting Europe’s traditional pathway to space

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Image of a rocket clearing the tower during liftoff.

Enlarge / A Falcon 9 rocket launches the Axiom-2 mission on May 21, 2023.

SpaceX

The European Space Agency’s (ESA) has a deal with Axiom Space to get more Europeans in orbit. But does the partnership benefit European taxpayers who fund the agency’s operations?

On Wednesday, January 17, the third privately funded mission by US commercial spaceflight company Axiom Space is set to lift off from Kennedy Space Center in Florida on SpaceX’s Falcon 9 rocket. Inside the Crew Dragon capsule will be a quartet of space travelers, including Swedish fighter pilot Marcus Wandt.

Wandt will be flying under the European Space Agency (ESA) flag, although he is not exactly an ESA astronaut. In the 2022 European astronaut recruitment round, Wandt didn’t make the final five of Europe’s “proper” astronaut class, who became ESA staff members and started their astronaut training in 2023. Instead, he was selected as a member of ESA’s first astronaut reserve pool, a novelty developed by ESA with an apparent goal of encouraging its member states to pay for national missions in addition to their regular contributions to ESA’s budget. Sweden was the first to jump at the opportunity in April last year and is paying for Wandt’s two-week space trip through a contract brokered by ESA as part of a Memorandum of Understanding the agency signed with the American commercial company Axiom Space in October 2023.

Ticket to ride

Wandt is the first but not the only reserve astronaut with his ticket to space while his seemingly more successful colleagues who made the proper astronaut corps are still in training. Poland, too, has signed up and expects to fly its reservist, Sławosz Uznański, on another Axiom mission later this year.

Compared to their overall investment in space activities, the price these countries pay to see their nationals float in microgravity is not negligible. At the November 2022 ESA ministerial council—the triennial member state summit that decides the agency’s budget for the following three-year period—Sweden pledged 317 million euros ($355 million).

According to a 2018 announcement, Axiom Space sells 10-day space trips for $55 million a seat. The overall cost of each mission is likely to be quite a bit higher. Last year, Hungary signed a contract directly with Axiom to send a Hungarian national to the International Space Station independently of ESA. Hungary discussed plans for a national mission back in 2022 and, at that time, estimated the project to cost about $100 million. Based on that estimate, Sweden may be easily paying an equivalent of its annual contribution into the ESA budget to get Wandt to space.

In addition to Wandt and Uznański, the ESA astronaut reserve pool includes nine other candidates, none of them officially employed by ESA. By filling this astronaut reserve pool, ESA seems to have created a market for Axiom Space, a move that might raise questions given the agency’s purpose is to promote the European space sector. In fact, the ESA’s founding Convention enshrines the principle of geo-return, which grants member states at least an 80 percent return on their contributions into ESA’s budget in the form of research and development contracts. Although the cost of the Axiom missions is paid through ESA, most of this money goes to the Texas-headquartered Axiom Space and its launch provider, SpaceX.

Secret contracts

ESA refused to disclose details of the arrangement between Axiom Space and Sweden, calling it “proprietary data as this is implemented through a confidential commercial contract.” The Swedish National Space Agency didn’t respond to Ars Technica’s request for comment.

Poland’s announcement of a national mission for Uznański arrived in August last year, accompanied by a jaw-dropping increase of the country’s contribution to ESA’s budget. At the 2022 ministerial council, Poland earmarked 197 million euros for the agency’s activities in the 2023 to 2025 period. In August, the Polish Space Agency more than doubled this contribution, committing an additional 295 million euros ($322 million). It is not clear how much of this money will go toward Uznański’s space trip.

In the months following the announcement of the astronaut reserve pool, Axiom Space began actively approaching home countries of the reservists with offers to fly those men and women to space, according to media in the Czech Republic, which has recently declined the offer.

In addition to Sweden and Poland, the UK also intends to use Axiom’s services and conduct a British-only mission that will be headed by semi-retired ESA astronaut Tim Peake. It will also include the UK’s Rosemary Coogan, newly named as one of ESA’s career astronauts, as well as reservist Meganne Christian and para-astronaut John McFall. Unlike the Swedish and Polish mission, the British mission will be funded by the private industry in the UK rather than by taxpayers, according to the BBC.

Axiom and SpaceX are disrupting Europe’s traditional pathway to space Read More »

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Daily Telescope: Life on Earth, and maybe in the heavens above, in a single photo

daily telescope, Science, Space / /

Life finds a way —

It is fun to contemplate all of the life on display in this image.

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The Milky Way over the sea.

Enlarge / The Milky Way over the sea.

Alfonso Tamés

Welcome to the Daily Telescope. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We’ll let other publications offer you a daily horoscope. At Ars Technica, we’re going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.

Good morning. It’s January 15, and today’s image comes to us from Playa Grande, Mexico.

I realize that some readers may be tiring of seeing the Milky Way Galaxy, but not me! I love photos of our galaxy and so they are regularly featured in the Daily Telescope. However, this photo is truly special, as it highlights not just the heavens above, but one of the wonders here on Earth.

Alfonso Tamés sent me this image, and I can’t get enough of it. The photo showcases both our galaxy and a bit of the Orion Nebula in the sky and bioluminescence in the ocean—that is light being emitted by marine life in the sea. One of the most amazing nights I’ve ever had is kayaking in a bioluminescent bay in Puerto Rico, such an eerie and otherworldly experience.

It is fun to contemplate all of the life on display in this image, both what is known in the ocean and what may exist around all those stars above. Have a great week, everyone.

Source: Alfonso Tamés

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