Tag: spaceflight

Axiom again cancels return of manned mission due to weather

9:12 am

Capitalism in space: Because of continuing poor weather on Earth, SpaceX & Axiom once again canceled the planned return of manned mission yesterday.

At the moment there is no word on when SpaceX’s Endeavour capsule will undock and bring its passengers home. Since a NASA crew is preparing for launch on Saturday, April 23rd, we should expect that return to occur beforehand.

This article from Israel about the delay, which also focuses on the flight of Israeli businessman Eytan Stibbe, had this interesting tidbit:

Businessmen Stibbe, American Larry Connor of Ohio, and Canadian Mark Pathy have paid $55 million apiece for the rocket ride. The visitors’ tickets include access to all but the Russian portion of the space station. [emphasis mine]

When the Russians launched Dennis Tito and other tourists in 2000s, I am unsure if those tourists were allowed in the American portion of the station. My guess would be yes, but that would be a guess, and very easily wrong. During the two tourist flights to ISS in October and December it is also unclear if those passengers had access to the American half. Considering the competition for tourist flights that now exists, I would suspect no.

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Hubble looks at a tight cluster of five galaxies

1:33 pm

Hickson Compact Group 40
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken by the Hubble Space Telescope to celebrate the telescope’s 32nd year in orbit. This cluster of five galaxies is dubbed Hickson Compact Group 40.

This menagerie includes three spiral-shaped galaxies, an elliptical galaxy, and a lenticular (lens-like) galaxy. Somehow, these different galaxies crossed paths in their evolution to create an exceptionally crowded and eclectic galaxy sampler.

Caught in a leisurely gravitational dance, the whole group is so crowded that it could fit within a region of space that is less than twice the diameter of our Milky Way’s stellar disk.

Though such cozy galaxy groupings can be found in the heart of huge galaxy clusters, these galaxies are notably isolated in their own small patch of the universe, in the direction of the constellation Hydra.

The red streaks in three galaxies is thought to be dust, suggesting that stars are still forming in these galaxies. The vertical galaxy on the right is seen edge on. Note too the tilted ring that appears to surround the galaxy on the left.

As for Hubble’s anniversary, the press release notes that since launch in 1990 the space telescope has made 1.5 million observations covering 50,000 heavenly objects, an archive of data available to anyone to access.

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Perseverance spots its parachute

11:50 am

Perseverance spots its parachute
Click for full resolution. Original images found here and here.

Overview map
Click for interactive map.

Cool image time! Today the Perseverance science team released two photos taken on April 6th that captured the parachute that the rover had used to land on Mars on February 18, 2021. The enhanced panorama above is from those images. The white feature near the center is the parachute. The mountains in the distance are the southern rim of Jezero Crater, about 40 miles away.

The overview map to the right gives the context. The red dot is Perserverance’s location as of yesterday, on sol 413. The black dot marks its location on April 6th, when it took the pictures. The green dot marks Ingenuity’s present position. The yellow lines indicate the approximate area covered by the panorama.

Ingenuity had not completed its 25th flight until April 8th, two days after these photos were taken, so it isn’t actually just off the edge of these photos, it is beyond the near ridgeline out of sight.

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Biden administration vows to cease anti-satellite tests

9:35 am

The Biden administration yesterday announced that it is prohibiting the military from conducting any further anti-satellite tests that would result in the destruction of an orbiting target satellite.

The ban is focused entirely on preventing further space junk produced by such tests.

It … is extremely limited in scope to testing of direct ascent destructive ASAT missiles — a formulation that leaves open the possibility of using such ASATs in conflict, not to mention testing and use of a host of other types of both destructive (think directed energy) weapons and those such as jammers that create temporary disruptions to functionality.

The goal appears to be to encourage other nations, such as China and Russia, to agree to their own bans. Considering the present state of world tensions, I think that is a pie-in-the-sky expectation. Both Russia and China have made it clear they are pursuing this space military capability aggressively. Neither has indicated the slightest interest in backing off.

The result? The U.S. under our bankrupt establishment leadership has once again unilaterally weakened its capabilities to protect itself, even as other hostile powers work to become stronger. And I say “once again” because this has been the pattern from Washington and Europe now for five decades. Except for outsider Trump, all western leaders have repeatedly acted as if they lived in a fantasy world of unicorns and rainbows. Consider for example Europe’s decision in the past decade to rely on Russia energy. They now find themselves at Russia’s aggressive mercy.

This decision is another example of this pie-in-the-sky approach. Since every previous American anti-satellite test had aimed at satellites already about to burn up in the atmosphere, those tests produced no space junk. Thus, banning the military’s ability to conduct such tests has done nothing to reduce future junk. All it has done is tied the U.S.’s hands, under a fantasy that acting nice will somehow get the Russians and Chinese to do the same.

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SLS launch now definitely delayed until July, at the earliest

9:05 am

NASA yesterday admitted that with the decision to return SLS to the vehicle assembly building (VAB) before completing its dress rehearsal countdown, it is now impossible to launch SLS in the June launch window as planned, and that the earliest the rocket could launch would be July.

This summary of the issues that dogged the rocket during the three attempts to complete that dress rehearsal illustrates the likelihood that SLS has many engineering loose ends still unresolved:

On April 3 it was malfunctioning fans on the Mobile Launcher needed to clear hazardous fumes. On April 4, it was a defective helium check valve on the Interim Cryogenic Propulsion Stage, ICPS, the Space Launch System’s second stage. On April 14, it was a hydrogen leak on the SLS first stage, or Core Stage.

Once again, having such problems during the first countdown of a new rocket is not unusual. What is questionable is only finding them now, at the very end of the rocket’s development.

I predict the launch will be further delayed until the fall, at which time NASA might face a much more serious issue regarding SLS’s two strap-on solid rocket boosters. During the shuttle era NASA had always placed a one year limit on their use once they were stacked, because it was believed that standing in a vertical position for too long could warp and distort the solid rocket fuel, thus causing it to burn improperly during launch.

These boosters were first stacked near the end of 2020, so their use-by date should have been January 2022, at the latest. Not launching until the fall will place them nine to eleven months past that date. And since these boosters are taller than the one’s used by the shuttle, they are heavier which makes extending that lifespan even riskier.

Thus, if NASA decides it must replace the boosters, that will likely delay the launch another three to six months, pushing it into ’23 at the earliest. If NASA decides to go with these boosters, it poses a real risk of failure during launch, a failure that will certainly destroy the rocket.

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Return of first Axiom commercial crew from ISS delayed

8:55 am

Capitalism in space: Because of iffy weather at their planned splashdown point, SpaceX and Axiom have delayed the return of Axiom’s first commercial crew at ISS so that they will splashdown tomorrow.

Weather permitting, the four-member private astronaut crew now is targeted to undock at about 10 p.m. Tuesday, April 19, to begin the journey home with splashdown off the coast of Florida no earlier than approximately 3:24 p.m. EDT Wednesday, April 20.

If weather remains an issue, the return to Earth of Endeavour could be delayed further.

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Dawn on the Moon

5:34 pm

Dawn on the Moon's far side
Click for full image.

Cool image time! The photo to the right, reduced to post here, was taken on August 25, 2019 by Lunar Reconnaissance Orbiter (LRO). It shows an oblique view looking west just after lunar dawn of an unnamed 13-mile-wide crater in Mare Moscoviense on the far side of the Moon. From the caption:

Mare Moscoviense is one of the few volcanic plains on the farside, which is largely comprised of ancient cratered highland terrain. The fact that the farside was strikingly different from the familiar nearside was a surprise when the Soviet Luna 3 spacecraft returned the first farside images in 1959. The highland crust is thicker on the farside than on the nearside, which is thought to have inhibited magmas from reaching the surface as frequently as they once did on the nearside.

As seen in the image above, Mare Moscoviense lies within a large impact basin, the formation of which thinned the local crust, perhaps making it easier for lavas to erupt that would have otherwise stalled below the surface. But why does this global asymmetry in crustal thickness exist? This is still a mystery, like the origins of the large-scale asymmetries observed on Mars and Mercury, though ideas like a giant impact event that stripped off a portion of the crust or asymmetric overturn of the mantle have been proposed.

Note the dark shadow obscuring the foreground on the left. It appears from the topography in the overhead map at the link that the ridgeline that marks the eastern border of Mare Moscoviense is just high enough at dawn to keep the mare in shadow while allowing the sun’s dawn light to peek over and illuminate the crater’s rim. That ridgeline however only extends so far to the north, thus allowing sunlight to hit the plains on the right sooner.

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White sediment in Martian slot canyon

9:43 am

White sediment in Martian slot canyon
Click for full image.

Yesterday’s Picture of the Day from the high resolution camera on Mars Reconnaissance Orbiter (MRO) revisited a captioned image first posted in February 2014 by the science team. That picture, cropped and enhanced, is to the right. From the 2014 caption:

There is a large channel system that flows into the basin, called Ladon Valles, and scientists think that the basin may have once filled with water before another channel to the north formed and drained it. These exposures of light-toned layered sediments provide clues about the environment that existed within Ladon Basin when water may have ponded and deposited these sediments.

Later research has generally concluded that these white sediments are iron and magnesium smectites, often appearing as white tuff material whose deposition is generally associated with precipitation of water or snow and its subsequent evaporation or sublimation.
» Read more

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Pieces of old Long March 3B rocket fall in India

9:09 am

It appears that pieces of an old Long March 3B rocket, launched on February 4, 2021, have fallen in India earlier this month.

On April 2, locals of Sindewahi tehsil were shocked to see six metallic spheres, metal balls and a metallic ring falling from the sky. Similar objects fell from the sky simultaneously in parts of Maharashtra, Madhya Pradesh and Gujarat.

This is not an example of China dumping the expendable first stage of a rocket on the ground during launch. These pieces came from the rocket’s upper stage, which reached orbit in ’21 and only now fell to Earth when its orbit decayed. Usually, most of the upper stage of a rocket burns up upon re-entry. However, certain pieces, such as the inner helium tanks that keep the larger fuel and oxidizer tanks pressurized, are sometimes strong enough to survive re-entry. It is likely that these tanks are the metallic spheres.

To avoid this, the rocket’s upper stage engine needs to be fired one last time to aim the re-entry over the ocean. SpaceX does this routinely. It appears at least in this one case China did not.

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NASA abandons 4th attempt to complete SLS dress rehearsal countdown

9:15 am

UPDATE: NASA today decided to scrub a fourth attempt to complete a full dress rehearsal countdown of its SLS rocket on April 21 later this week, and roll the rocket back to the vehicle assembly building (VAB).

NASA said that its contractors, as well as its agency’s, will use the next several weeks to address problems that cropped up during the fueling tests when the SLS rocket returns to the large Vehicle Assembly Building. For example, gaseous nitrogen system supplier Air Liquide will upgrade its capabilities. NASA will also replace a faulty check valve on the upper stage of the rocket, as well as fix a leak on the mobile launch tower’s “tail service mast umbilical,” a 10-meter-tall structure that provides propellant and electricity lines to the rocket on the pad.

This situation is increasingly becoming a big problem for NASA, and the SLS rocket. After returning it to the VAB it will take several weeks to address the issues that caused the aborts on the previous attempts. If the agency then repeats the wet dress rehearsal to make sure all is well and then returns the rocket again to the VAB, it would delay the actual launch to late summer or early fall. At that point the two strap-on solid rocket boosters will have been stacked almost two years, almost twice as long as they are supposed to before launch.

The agency could attempt to roll out the rocket for a dress rehearsal, and then proceed directly to launch. That would allow the possibility of a launch in the early summer, but for that plan to work everything must work perfectly.

The many problems during the dress rehearsal were in themselves not bad marks against the rocket or program. This was a test to iron out kinks in the launch procedures, and such issues should be expected. The real problem is that these kinks during launch countdown are being worked out now, at the very end of development, rather at the beginning. They suggest that the rocket has a lot of engineering loose ends that were not thoroughly tested and worked out in development, thus increasing the likelihood of a complete failure during actual launch.

This rocket was first conceived in 2004. Its development, in fits and starts, has now been on-going for 18 years. The total cost exceeds $30 billion (not including the $20 billion or so spent on the Orion capsule). That it is not ready to launch is a striking condemnation of our entire government. The rocket was designed by Congress, and NASA’s program to build it has been costly, slow, and poorly managed, from the beginning.

As I wrote in 2011, it should have been scrapped more than a decade ago, replaced with rockets from the private sector. Had our incompetent federal government done that we would likely be launching humans to the Moon, now, and saved a lot of money in the process.

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NASA has now scheduled for no earlier than April 21, 2022 its fourth attempt to complete a SLS dress rehearsal countdown, stymied the last time by a hydrogen fuel leak.

Each delay puts further pressure on the agency’s hope of launching in June. And each launch delay puts the rocket’s solid rocket boosters farther and farther past their use-by date that officially arrived in January.

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Astronauts return from Chinese station; China launches satellite

9:06 am

Late yesterday China’s Shenzhou descent capsule successfully brought home three astronauts from its Tiangong-3 space station after spending six months in space.return from Chinese station.

During their stay they completed two spacewalks and prepared the station for the arrival of two more large modules in the next six months.

China yesterday also used its Long March 4C rocket to launch a new radar satellite designed to observe the Earth’s atmosphere.

The leaders in the 2022 launch race:

13 SpaceX
11 China
5 Russia
2 ULA
2 Rocket Lab

The U.S. still leads China 20 to 11 in the national rankings. Note that at this moment the U.S. total is more than all other nations combined (19).

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Apollo 16 on Moon, as visualized by Lunar Reconnaissance Orbiter

3:44 pm

In celebration of the fiftieth anniversary of the Apollo 16 mission to the Moon in April 1972, scientists using images from Lunar Reconnaissance Orbiter (LRO) have created a short digital visualization of the lunar surface where astronauts John Young and Charles Duke completed three different excursions across the lunar surface.

I have embedded that video below. The audio is the discussion between John Young and the capcom at mission control during the last excursion. The key moment is when John Young reaches the rim of North Ray crater, and realizes he cannot see its floor because the interior slopes are so steep.
» Read more

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The spiral galaxy M91

3:38 pm

spiral galaxy M91
Click for full release image.

Cool image time! The image to the right, reduced to post here, was released today by the Space Telescope Science Institute as part of a regular program using the Hubble Space Telescope to photograph galaxies.

This observation is part of an effort to build a treasure trove of astronomical data exploring the connections between young stars and the clouds of cold gas in which they form. To do this, astronomers used Hubble to obtain ultraviolet and visible observations of galaxies already seen at radio wavelengths by the ground-based Atacama Large Millimeter/submillimeter Array.

The galaxy is estimated to be about 55 million light years away, and is thought to have a supermassive black hole at its center with a mass somewhere between 9 and 38 million times the mass of the Sun.

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China’s astronauts to return after six month mission

12:40 pm

The new colonial movement: The three astronauts who have been on China’s Tiangong space station are about to return to Earth after completing a record six month mission.

Airspace closure notices indicate that Shenzhou-13 will return to Earth between 9:35 and 10:05 p.m. Eastern April 15 (9:35-10:05 local time, April 16) following departure from Tianhe.

The Shenzhou return capsule is planned to set down in a designated landing zone near Dongfeng in the Gobi Desert, Inner Mongolia.

Previous landings occurred in the grasslands of Siziwang, Inner Mongolia. Factors for the change include increasing population density around Siziwang, and the need to optimize for astronaut recovery as the duration of China’s spaceflight missions increases.

I suspect the change in landing location to inside China is also for security reasons. Tensions created by the Ukraine War has probably made China’s leaders reluctant to have their astronauts land anywhere but in China itself.

The article also outlines the upcoming plans for the next crew to Tiangong, which will be on board during the arrival of the station’s next two large modules.

The three-person Shenzhou-14 crew will be aboard the Tianhe space module for the arrival of two new modules, named Wentian and Mengtian, which will complete the three-module, T-shaped Chinese space station, later in the year.

Both of these large modules will be launched by China’s Long March 5B rocket. The previous launches of this rocket resulted in the crash of an out-of-control core stage because once it reached orbit it could not restart its engines to control its de-orbit. Though there have been hints that China may have upgraded the core stage’s engines, we do not know yet for certain if that includes the ability to restart it. If not, China should once again be prepared for some bad press as it threatens populated areas worldwide with these stages.

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Don’t launch it! Don’t spin it! Fire your orbital payloads from a gun!

11:59 am

Capitalism in space: It appears there is another company attempting to develop a different radical method for getting payloads into space. Instead of launching them on a rocket, or spinning them up to escape velocity (as Spinlaunch proposes), the startup Green Launch proposes to fire them from a cannon!

Green Launch COO and Chief Science officer Dr. John W. Hunter directed the Super High Altitude Research Project (SHARP) program at the Lawrence Livermore National Laboratory some 30 years ago, and in the process led the development of the world’s largest and most powerful “hydrogen impulse launcher.”

This is effectively a long tube, filled with hydrogen, with helium and oxygen mixed in, and a projectile in front of it. When this gas cannon is fired, the gases expand extremely rapidly, and the projectile gets an enormous kick in the backside. The SHARP program built and tested a 400-foot (122-m) impulse launcher in 1992, breaking all railgun-style electric launcher records for energy and velocity, and launching payloads (including hypersonic scramjet test engines) with muzzle velocities up to Mach 9.

This approach, says Green Launch Business Development Director Eric Robinson, scales up far better than a spinning accelerator like the SpinLaunch system.

On its website the company claims this technology could not only be used for bulk payloads, like oxygen or water, but also “acceleration-tolerant payloads in the cube-sat class and smaller.” I am not sure how any complex hardware in any satellite, no matter how small, could withstand such accelerations, but once again, such technology could provide a cheap way to get simple cargo into orbit.

Below is a video of the company’s December 21, 2021 vertical test.
» Read more

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Ingenuity completes 25th flight, the longest yet

10:51 am

Overview map
Click for interactive map.

On April 8th the Mars helicopter Ingenuity successfully completed its 25th flight on Mars, traveling 2,310 feet at 18 feet per second while flying for 161.3 seconds.

The long distance was designed to take it out from the rough region dubbed Seitah and near the delta that is the prime geological target of the rover Perseverance.

The overview map shows the location of both rover and helicopter as of today. The red dot is Perseverance, the green dot is Ingenuity. The rover has now completed its entire planned travels, as announced in June 2021. Where it goes next has not as yet not been announced. According to the team, they plan to use Ingenuity to scout out possibly routes up onto the delta. This likely means the rover will likely spend some time at the base of the delta, getting as much data as it can, while Ingenuity does this scouting work.

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Boeing and NASA set May 19th for second Starliner unmanned demo launch

10:21 am

NASA yesterday announced May 19th as the new launch date for Boeing’s second attempt to complete the first unmanned Starliner demo mission to ISS.

The uncrewed mission will test the end-to-end capabilities of the Starliner spacecraft and Atlas V rocket from launch to docking and return to Earth at one of five designated landing zones in the western United States. Following a successful completion of the OFT-2 mission, NASA and Boeing will determine a launch window for NASA’s Boeing Crew Flight Test (CFT), Starliner’s first flight with astronauts aboard.

The first unmanned demo flight in December 2019 failed to dock with ISS and had to be cut short due to serious software issues. The launch of the second unmanned demo flight was scrubbed mere hours before launch in August of 2021 due to serious valve issues.

Thus, Boeing’s manned capsule is more than two years behind schedule. Not only has Boeing had to pay more than $400 million for a second demo mission, the delays have caused a lot of business with NASA and with tourists to instead go to SpaceX. Hopefully, the company has finally fixed all issues and will succeed and begin manned operations later this year.

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TASS: China has suspended science partnerships with Russia

9:59 am

According to Alexander Sergeev, President of the Russian Academy of Sciences, Chinese scientists have also suspended all cooperation with Russia’s Academy of Sciences, as have all western nations due to its invasion of the Ukraine.

“If we talk about the southern or eastern directions, unfortunately, I can say directly that our Chinese scientific colleagues have also pressed the pause [button], and over the past month we have not been able to enter into serious discussions, despite the fact that we had excellent cooperation along with regular communication,” Sergeev said.

It is impossible to say at this point whether the actions of these Chinese scientists to refuse cooperation with Russia is based on a decision of the Chinese government, or simply reflects the decision of the scientists themselves. I would suspect the former, but if so it is quite surprising, as China’s communist government has made no such announcement. It could also be that China has decided it does not want to appear a party to Russia’s invasion in any way, but also does not want to make that decision public. Thus, it might have told its scientists to pause all work, but do this quietly.

Let me add that this statement by Sergeev could also be simply disinformation, demanded on him by Putin’s government. While Russian scientists tend to deal straight with other scientists, the situation is unique. For example, Dmitry Rogozin today claimed in TASS that the private space company Axiom owes Russia about $25 million for the nearly year-long flight of Mark Vande Hei to ISS. The problem is that this is utterly wrong. Axiom had nothing to do with Vande Hei’s flight. He was a NASA astronaut. Rogozin’s statement however is aimed at the Russian public — which has limited resources to question his statements — and is designed to slander both NASA and the private companies that now compete with Roscosmos.

If Rogozin can so nonchalantly issue false statements like this for propaganda reasons, so can Sergeev.

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China’s Long March 3B/E rocket launches communications satellite

9:50 am

China today successfully placed a commercial communications satellite into orbit using an upgraded version of its Long March 3B rocket, dubbed the Long March 3B/E.

The 3B/E includes a larger first stage using more powerful engines as well as upgraded strap-on boosters. No word if these upgrades included either grid fins or parachutes or any ability to control the crash of the stage or boosters. As the launch was from one of China’s interior spaceports, these stages crashed inside China.

The leaders in the 2022 launch race:

13 SpaceX
10 China
5 Russia
2 ULA
2 Rocket Lab

The U.S. still leads China 20 to 10 in the national rankings.

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Third SLS dress rehearsal countdown scrubbed before completion

1:29 pm

NASA engineers today scrubbed their third attempt to complete a dress rehearsal countdown of the agency’s giant SLS rocket when a leak was detected in a hydrogen fuel line.

The team will not conduct the terminal countdown activities today as planned and will assess next steps after today’s operations.

The problem appears to be “a leak … in the tail service mast umbilical.”

It is not clear yet how much of the countdown and fueling will be completed. Because of a faulty valve in the upper stage, NASA management had already decided to eliminate fueling of the rocket’s upper stage from the rehearsal. The problem today appears to involve the core first stage’s hydrogen tanks, which are presently partly filled only about 5%. Based on their last tweet, it appears they have not drained the tank, though they apparently will not continue the rehearsal today.

UPDATE: NASA just tweeted the following:

Teams have confirmed they have satisfied the test objectives for the ICPS [upper stage] LH2 [hydrogen tank] chilldown and after gathering additional data, will work to drain propellant from the rocket. They will inspect the TSMU umbilical connection, review data, and establish a go-forward plan.

This sounds as if the agency might decide they have completed enough of the dress rehearsal to consider it complete, and will now roll the rocket back to the vehicle assembly building for further check out.

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Europe removes its science instruments from future Russian lunar missions

8:43 am

The Europe Space Agency (ESA) yesterday announced that because of Russia’s invasion of the Ukraine it will no longer fly any science instruments on three upcoming Russian unmanned lunar probes.

ESA will discontinue cooperative activities with Russia on Luna-25, -26 and -27. As with ExoMars, the Russian aggression against Ukraine and the resulting sanctions put in place represent a fundamental change of circumstances and make it impossible for ESA to implement the planned lunar cooperation. However, ESA’s science and technology for these missions remains of vital importance. A second flight opportunity has already been secured on board a NASA-led Commercial Lunar Payload Services (CLPS) mission for the PROSPECT lunar drill and volatile analysis package (originally planned for Luna-27). An alternative flight opportunity to test the ESA navigation camera known as PILOT-D (originally planned for Luna-25) is already being procured from a commercial service provider.

In other words, Europe is switching to the many private American companies that are developing lunar landers for NASA science instruments. It has also signed onto a Japanese lunar mission. All have payload space, and all are willing to take the cash of a new customer.

Meanwhile, this is how Dmitry Rogozin responded to this decision:

“Good riddance! One less European dame off our backs, so Russia should go far with a lighter load,”

To sum this all up, when it comes to space, the Ukraine invasion has been Russia’s loss, and everyone else’s gain. Even if the invasion were to end today, it will take at least a decade to re-establish Russia’s business ties with the west.

Unfortunately, the invasion will cost the Ukraine as well. In making the above announcement ESA officials also said that it is looking for alternatives to the Ukrainian rocket engines used in its Vega-C upper stage.

At the news conference, ESA also discussed the future of its small Vega rocket, which relies on Ukraine-built engines in its upper stage. The engines are manufactured by the Ukrainian company Yuzhmash, which is based in the tech city of Dnipro. Although Dnipro has been under heavy bombardment, there have been no official reports so far about damage to Yuzhmash. It is, however, clear that ESA doesn’t expect to continue its partnership with the company in the future. “We now have sufficient engines for 2022 and 2023,” Aschbacher said. “We are working on options for 2024 and onwards based on different technologies.”

Daniel Neuenschwander, ESA’s director of space transportation, added: “We are working on engine opportunities within Europe and outside of Europe, which are either tested or, even better, already existing and fully qualified.”

Whether ESA completely breaks off its partnership with the Ukraine however is not certain. Should the war continue to favor the Ukraine, then it could be that partnership will continue. Only time will tell. Right now, it is simply prudent for ESA to look for more stable alternatives.

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Frozen lava in Mars’ volcano country

5:31 pm

The frozen lava of the Athabasca flood plain
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on January 28, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what appears to be at first glance a relatively featureless plain with a lighter material covered by a patchwork of darker material.

Note however the lack of craters. Except for several faint depressions near the image’s center, there are none. And those depressions look like the expression of craters that have been covered by material. Is the two-toned surface here an expression of past lava flows? Or are we seeing an ice-sheeted plain, with the patches representing higher terrain above that plain?

The overview map below answers the question somewhat clearly.
» Read more

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A tour at rocket startup Phantom Space

2:45 pm

Jim Cantrell at Phantom

Creating a new rocket company is not something anyone can do. Nor is it something that even smart people can do, nonchalantly. The history of rocketry is littered with hundreds of attempts, almost all of which failed.

Jim Cantrell, pictured on the right standing next to one of the first test prototypes for a new rocket being made by his new company, Phantom Space, is one such person. In the mid-2010s Cantrell partnered with a number of others to found the company Vector, hoping to be one of the first smallsat rocket companies to launch a cheap and efficient rocket placing tiny satellites into orbit. At the time, Cantrell and Vector were racing neck and neck with Rocket Lab for the honor of being the first to do so.

While Rocket Lab succeeded in 2018, and has since completed more than twenty launches, Vector ended up on the ash heap of history, going bankrupt in 2019. The company’s failure was mostly due to problems with its rocket engine, which in turn caused one of its major investors to back out.

Cantrell however is apparently someone who does not take defeat quietly. Using what he had learned at Vector, in 2021 he started a new rocket company, Phantom Space, with a target date for its first test launch the summer of 2023.

Today Cantrell gave me a quick tour of Phantom’s operations here in Tucson.
» Read more

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Webb’s coldest instrument reaches operating temperature

1:32 pm

The engineering team announced today that the mid-infrared instrument on the James Webb Space Telescope has now cooled to its operating temperature of -447 degrees Fahrenheit, less than 7 kelvin degrees above absolute zero.

On April 7, Webb’s Mid-Infrared Instrument (MIRI) – a joint development by NASA and ESA (European Space Agency) – reached its final operating temperature below 7 kelvins (minus 447 degrees Fahrenheit, or minus 266 degrees Celsius).

Along with Webb’s three other instruments, MIRI initially cooled off in the shade of Webb’s tennis-court-size sunshield, dropping to about 90 kelvins (minus 298 F, or minus 183 C). But dropping to less than 7 kelvins required an electrically powered cryocooler. Last week, the team passed a particularly challenging milestone called the “pinch point,” when the instrument goes from 15 kelvins (minus 433 F, or minus 258 C) to 6.4 kelvins (minus 448 F, or minus 267 C).

Before science operations can begin the instruments still need further calibration and testing. Expect the first infrared images sometime in the next month or so.

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Space Perspectives unveils luxurious interior of Neptune high altitude balloon

9:41 am

Capitalism in space: Space Perspectives has now unveiled the high class stateroom interior that it plans to put inside its Neptune high altitude balloon that will take tourists to 30+ miles altitude.

Space Perspective just released artist’s illustrations of the interior of Spaceship Neptune, which will include 360-degree panoramic windows and even a restroom with a view. The announcement Tuesday (April 12) coincided with the anniversary of the first human spaceflight by cosmonaut Yuri Gagarin in 1961.

Based on the imagery, Spaceship Neptune’s cabin appears to come in at least a couple of configurations. One has reclining seats, for example, while another with couches can accommodate a “more intimate dinner for two or special event,” Space Perspective representatives said in a statement on Tuesday.

Space Perspective will provide food and beverage services, and the capsule features mood lighting that can be dimmed to see stars or the curvature of Earth outside. Also included in the capsule’s “Space Lounge” will be a telescope, interactive screens and decorations such as floor lamps and plants to “remind us of the interconnected nature of our planet,” the company added.

The company hopes to begin commercial flights by ’24, each of which will last about six hours. Tickets are priced at $125K each, with the company saying it already has 600 people on its waiting list.

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MAVEN and Al-Amal scientists sign agreement to collaborate

1:20 pm

Scientists running the Mars orbiters MAVEN (from NASA) and Al-Amal (from the United Arab Emirates [UAE]) have signed an agreement to share data and — more importantly — coordinate their observations of the Martian atmosphere.

A new partnership that encourages the sharing of data between NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) project and the Emirates Mars Mission’s (EMM) Hope Probe (Al-Amal in Arabic) will enhance scientific returns from both spacecraft, which are currently orbiting Mars and collecting data on the Red Planet’s atmosphere. The arrangement is expected to add value to both MAVEN and EMM, as well as the scientific communities involved in analyzing the data the missions collect.

MAVEN went into orbit around Mars in 2014. Its mission is to investigate the upper atmosphere and ionosphere of Mars, offering an insight into how the planet’s climate has changed over time. “MAVEN and EMM are each exploring different aspects of the Martian atmosphere and upper-atmosphere system,” said Shannon Curry, MAVEN principal investigator from the University of California, Berkeley. “Combined, we will have a much better understanding of the coupling between the two, and the influence of the lower atmosphere on the escape to space of gas from the upper atmosphere.”

The EMM Hope Probe, which went into Mars orbit in 2021, is studying the relationship between the upper layer and lower regions of the Martian atmosphere, giving insight into the planet’s atmosphere at different times of the day and seasons.

What this agreement means is that the two science teams can more quickly match up the data from both orbiters, and figure out the relationships between both.

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ULA orders 116 rocket engines from Aerojet Rocketdyne for its Vulcan upper stage

10:33 am

Capitalism in space: In order to meet its contract with Amazon to launch a lot of Kuiper satellites, ULA has now ordered 116 rocket engines from Aerojet Rocketdyne for the Centaur upper stage of its new and as-yet unlaunched Vulcan-Centaur rocket.

Aerojet said this was the company’s largest ever contract for the RL10 engine. The large purchase of rocket engines comes on the heels of Amazon’s announcement April 5 that it selected Arianespace, Blue Origin and ULA to launch up to 3,236 satellites for its Project Kuiper broadband constellation.

CEO Tory Bruno said ULA plans to fly Vulcan’s first mission late in 2022. Winning the Amazon deal would more than double the annual rate of Vulcan launches to as many as 25 per year, and ULA will ramp up production to meet the demand, Bruno said last week at the Space Symposium.

ULA’s engine choice for Vulcan’s upper stage dates back to 2018 when it selected a variant of the RL10, the same engine used to power the upper stages of ULA’s legacy rockets Atlas 5 and Delta 4 Heavy. Over the past 60 years, more than 450 RL10 engines have flown on various ULA heritage vehicles.

Meanwhile, ULA hopes to get its first BE-4 engines from Blue Origin, needed for the Vulcan first stage, this summer. Vulcan-Centaur cannot make its first launch until it gets some flightworthy BE-4 engines, and these are now three years behind schedule.

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Interstellar meteor impacted Earth in 2014

10:28 am

According to classified military data just released, it appears that an asteroid from interstellar space impacted the Earth in 2014, with some of its pieces possibly hitting the ocean in the south Pacific.

The meteor ignited in a fireball in the skies near Papua New Guinea, the memo states, and scientists believe it possibly sprinkled interstellar debris into the South Pacific Ocean. The confirmation backs up the breakthrough discovery of the first interstellar meteor—and, retroactively, the first known interstellar object of any kind to reach our solar system—which was initially flagged by a pair of Harvard University researchers in a study posted on the preprint server arXiv in 2019.

Amir Siraj, a student pursuing astrophysics at Harvard who led the research, said the study has been awaiting peer review and publication for years, but has been hamstrung by the odd circumstances that arose from the sheer novelty of the find and roadblocks put up by the involvement of information classified by the U.S. government.

The speed and angle in which the object hit the atmosphere are why the scientists believe it comes from outside the solar system.

Siraj is actually hoping to mount a mission to recover parts of this asteroid, something that is extremely unlikely. First, the meteor itself was small, so it likely all burned up in re-entry. Second, even if pieces survived, finding them on the bottom of the Pacific is likely impossible.

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