Tag: spaceflight

Space junk removal company ClearSpace signs deal to launch on Vega-C

9:59 am

The European company ClearSpace has signed a launch deal with Arianespace to fly the first test of its space junk removal robot on a Vega-C rocket set to launch some time in the second half of 2026.

The development of ClearSpace’s robot, which will use four grappling arms to surround and then capture its target, was paid for under a European Space Agency (ESA) $121 million contract which also required it to be launched on an Arianespace rocket. The problem right now is that it will fly as a secondary payload, and a primary payload has not yet been found.

Finding that primary payload is going to be difficult. First, Vega-C failed on its second launch last year and has not yet flown again. Second, it is expendable, and though cheaper than Arianespace’s other rocket, Ariane-6 (which has not yet launched), it is still more expensive than other commercial rockets now available. Third, the customer of that primary payload must also want to go into an orbit that will allow ClearSpace’s robot to reach its target, an abandoned Vega Payload Adapter from a previous launch.

As has been typical of Europe, this development is proceeding too slowly and is being hampered by requirements unrelated to profit and loss. By ’26 expect several other space junk removal companies — Astroscale and D-Orbit come to mind — to have already demonstrated their capabilities and already garnering market share, before ClearSpace even flies.

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NASA now demolishing the obsolete mobile launch platform used during Apollo

9:42 am

The second of three mobile launch platforms that were used during the Apollo program to transport the Saturn-5 rocket to its launchpad but are all obsolete and no longer in use is finally being demolished for salvage.

The first has already been scrapped, while the third is still in use for “servicing the crawlerway between SLS launches.”

NASA has been storing the platform in the Vehicle Assembly Building, but there was no longer room there, with Boeing taking over more space for assembling SLS core stages. The platform itself was deemed unsafe for display at any museum, with the cost of making it safe too high.

Better to salvage it than have it sit in the way of future space operations. After all, when you get down to it, it is simply some metal and hardware. The history was accomplished by the humans who built it, and who would be appalled if later generations used their work as a club to prevent new achievements in space.

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Momentus test orbital tug successfully raises orbit using water-ionized thrusters

9:29 am

Momentus’s Vigoride test orbital tug has successfully raised its orbit using a ion thrusters that use water as their fuel, proving that the tug can be used to bring smallsats launched as secondary payloads to their preferred orbits.

According to tracking data, Vigoride-5 is in an orbit at an average altitude of 524.3 kilometers as of late May 7, about two kilometers higher than it was in early April, when the maneuvers started. The vehicle’s orbit had been gradually decaying since its launch in early January on the SpaceX Transporter-6 smallsat rideshare mission, descending about five kilometers before the maneuvers started.

The test of the MET is a major milestone for Momentus, which is relying on the technology to propel its tugs that will deliver satellites to their desired orbits. Technical problems with its first tug, Vigoride-3, launched nearly a year ago, kept the company from testing the MET on that vehicle.

Vigoride-5 is carrying a single smallsat, for Singapore-based Qosmosys, that it will release, although the companies have not disclosed the planned orbit for that spacecraft. The tug will also operate a hosted payload from Caltech to demonstrate space-based solar power technologies for several months.

The company already has another Vigoride in orbit that launched in April, carrying its own set of payloads for orbital transport.

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Webb takes infrared image of the disk of dust and debris surrounding Fomalhaut

4:57 pm

Fomalhaut debris disk as seen in the infrared by Webb
Click for original image.

Using the mid-infrared instrument on the Webb Space Telescope, astronomers have obtained a new high resolution infrared image of the disk of dust and debris that surrounds the star Fomalhaut, and (surprise!) have it to be more complex than they previously believed.

That image is to the right, annotated by the science team.

Overall, there are three nested belts extending out to 14 billion miles (23 billion kilometers) from the star; that’s 150 times the distance of Earth from the Sun. The scale of the outermost belt is roughly twice the scale of our solar system’s Kuiper Belt of small bodies and cold dust beyond Neptune. The inner belts – which had never been seen before – were revealed by Webb for the first time.

The dust cloud identified in the outer ring is possibly left over from a recent collusion of larger bodies.

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Sinuous ridge inside Martian canyon

9:25 am

Sinuous ridge inside a Martian canyon
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on February 7, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the camera team labels a “sinuous ridge within valley.”

The location is at 30 degrees south latitude, right on the edge of the southern of the two 30-60 degree mid-latitude bands where orbital images show many glacial features. Closer to the equator and there is little or no evidence of near surface ice on Mars. Farther from the equator from this latitude and the evidence of near surface ice increases, becoming very dominant the closer to the poles you get.

At this spot, it appears there is little near surface ice. The channel has ripple sand dunes inside it, and the sinuous ridge appears to be bedrock. Similarly, the plateau above the channel also appears like bedrock, the craters showing no evidence of splatter that is common where there is near surface ice.

What made the channel? And what made that a sinuous ridge inside it?
» Read more

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China’s X-37B copy lands successfully after 276 days in orbit

8:35 am

China’s reusable mini-shuttle, essentially a copy of Boeing’s X-37B, has completed its second flight, landing in China on a runway after 276 days in orbit.

The project will provide a more convenient and inexpensive way to access space for the peaceful use of space in the future, according to the statement.

The reusable test spacecraft launched from Jiuquan Satellite Launch Center in the Gobi Desert Aug. 4 (UTC), 2022. The spacecraft released an object into orbit, U.S. Space Force tracking data revealed late last year. The small satellite operated in very close proximity to the spaceplane.

This apparent second flight on the secretive spacecraft differs from its first mission in 2020. That flight saw the spaceplane orbit for four days.

During the flight the spaceplane made numerous orbital maneuvers.

Like the X-37B, this reusable mini-shuttle allows China to do many technology experiments in orbit and then return them to Earth for analysis.

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Rocket Lab successfully launches two NASA hurricane monitoring cubesats

6:11 pm

Rocket Lab’s Electron rocket today successfully placed NASA’s two Tropics hurricane monitoring cubesats into orbit, lifting off from New Zealand ((May 8th New Zealand time).

This is the first of two Rocket Lab launches to get the entire four-satellite Tropics constellation into orbit, with the second schedule for two weeks from now.

The leaders in the 2023 launch race:

29 SpaceX
16 China
6 Russia
4 Rocket Lab

American private enterprise now leads China 33 to 16 in the national rankings, and the entire world combined 33 to 28.

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Brain terrain on top of Martian mountains

12:28 pm

Brain terrain at high elevation on Mars
Click for original image.

Cool image time! The picture to the right, cropped and reduced to post here, was taken on March 26, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It is labeled by the scientists “Brain Terrain on Floor of Crater in Warrego Valles.”

Brain terrain is a geological feature entirely unique to Mars that remains unexplained in any way by geologists. The scientists know it is almost certainly related to near-surface ice and its sublimation into gas, but their theories as to its precise formation process remain incomplete and unconvincing, even to them.

In this case the brain terrain’s interweaving nodules seem to show flow patterns, but strangely those patterns go around depressions and hollows. Yet, the overall flow direction also seems to point downhill towards the slope on the image’s right edge.
» Read more

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Hubble captures shadows on star’s outer accretion disk cast by inner accretion disk

11:07 am

Shadows cast on star's accretion disk
Click for original image.

Astronomers using the Hubble Space Telescope’s images taken five years apart have captured the changing shadows cast by a star’s inner accretion disk onto its outer accretion disk.

Those images are to the right, reduced and rearranged to post here. From the caption:

Comparison images from the NASA/ESA Hubble Space Telescope, taken several years apart, have uncovered two eerie shadows moving counterclockwise across a disc of gas and dust encircling the young star TW Hydrae. The discs are tilted face-on as seen from Earth and so give astronomers a bird’s-eye view of what’s happening around the star.

The [top] image, taken in 2016, shows just one shadow [A] at the 11 o’clock position. This shadow is cast by an inner disc that is slightly inclined to the outer disc and so blocks starlight. The picture on the [bottom] shows a second shadow that emerged from yet another nested disc at the 7 o’clock position, as photographed in 2021. What was originally the inner disc is marked [B] in this later view.

The shadows rotate around the star at different rates like the hand on a clock. They are evidence for two unseen planets that have pulled dust into their orbits. This makes them slightly inclined to each other. This is a visible-light photo taken with the Space Telescope Imaging Spectrograph. Artificial colour has been added to enhance details.

An artist’s conception of the system, as seen from an oblique angle, is available here. All told, this solar system of disks kind of resembles a spinning gyroscope, with its different rings tilted at different angles to conserve angular momentum.

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Celestis recovers astronaut’s remains from suborbital rocket explosion

10:06 am

Celestis, the company that specializes in sending people’s ashes into space, has successfully recovered the remains of a former Apollo astronaut Philip Chapman (who never flew in space) after the suborbital rocket they were on exploded four seconds into flight.

“All 120 flight capsules are safely in the hands of launch personnel and will be returned to us awaiting our next flight as soon as UP and Spaceport America complete their investigation and any required fixes are implemented,” Celestis said in a statement on Wednesday. The recovered payloads are set to fly again on board the company’s upcoming Perseverance Flight. The company said it only launches a “symbolic portion” of ashes or DNA sample from its participants.

Celestis has sent remains of many celebrities as well as ordinary customers on a number of orbital and suborbital flights over the years. The recovery of the remains and their expected reflight in this case enhances its business model, since none of its customers want their ashes lost in a rocket failure, before reaching space.

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Lockheed Martin reorganizes its space divisions to better compete in the new commercial market

9:58 am

Lockheed Martin today announced that it is reorganizing its space divisions to make them better aligned with the new commercial market, and thus better able to win market share.

The company will streamline its operation from “five lines of business to three,” the first focused on commercial space, the second focused on classified military projects, and the third focused on military missile work.

As a big space company, Lockheed Martin has made a great effort in recent years to break into the commercial rocket industry. It was a major investor in Rocket Lab, and is also a major investor in the rocket startup ABL, which it is sending a lot of business. It also realigned its satellite construction business to focus on smallsats, including investing a lot of money in the smallsat company Terran Orbital.

This reorganization is clearly an effort to underline these changes. Whether it will work remains to be seen. Often such reorganizations in big older corporations end up being nothing more than rearranging the deck chairs on the Titanic.

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ESA finally admits — sort of — that private enterprise can do it better

9:48 am

Stephane Israel, the architect of ESA's rocket failure
Stéphane Israël, the head of Arianespace and the
architect of its failure to compete in the field of rocketry.

Today there was a news report in which Stéphane Israël, the head of Arianespace, kind of admitted at last that the expendable design of Europe’s new Ariane-6 rocket was a mistake, and that it will take a decade more to fix it.

“When the decisions were made on Ariane 6, we did so with the technologies that were available to quickly introduce a new rocket,” said Israël, according to European Spaceflight.

He added that it will not be until the 2030s before Europe begins flying its own reuseable rocket.

Israël’s comments illustrate the head-in-the-sand approach he has exhibited now for decades. He claims the European Space Agency (ESA) chose to make Ariane-6 expandable so that it would be ready quickly, but its development has not been fast, and in fact is now more than three years behind schedule. When it finally begins flying operational it will have taken almost a decade to create it.

His comments also are his lame attempt to push back against a recent ESA report [pdf], issued in late March, that strongly rejected the decades-long model that ESA has used to build its rockets. Up until now and including the construction of Ariane-6, ESA designed and built its rockets, using Arianespace, headed by Israël, as its commercial arm. In other words, the government ran the show, much like NASA did for most of the half century following the 1960s space race. The result was slow development, and expensive rockets. Arianespace for example never made a profit in its decades-long existence, despite capturing half the commercial market in the 2000s and early 2010s.

The March ESA report rejected this model, and instead advocating copying what the U.S. has done for the past half decade by shifting ownership and design to the private sector, as advocated in my 2017 policy paper, Capitalism in space. To quote the ESA report:
» Read more

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