Year: 2024

Newly discovered potentially dangerous asteroid found to be a contact binary

11:38 am

Radar images of asteroid 2024ON
Click for original image.

Radar images taken during the close fly of a newly discovered potentially dangerous asteroid has revealed that it is a contact binary, formed by two objects stuck together to produce a single asteroid with a peanutlike shape.

Discovered by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) on Mauna Loa in Hawaii on July 27, the near-Earth asteroid’s shape resembles that of a peanut. Like the asteroid 2024 JV33 that made close approach with Earth a month earlier, 2024 ON is likely a contact binary, with two rounded lobes separated by a pronounced neck, one lobe about 50% larger than the other. The radar images determined that it is about 755 feet (350 meters) long. Features larger than 12.3 feet (3.75 meters) across can be seen on the surface. Bright radar spots on the asteroid’s surface likely indicate large boulders. The images show about 90% of one rotation over the course of about six hours.

The radar images were taken one day before that close approach of 620,000 miles on September 17, 2024, and once again show that a large number of near-Earth asteroids, as much as 14%, are contact binaries. The data also helped better refine 2024ON’s orbit around the Sun, which show that though the asteroid has the potential to hit the Earth, its path will not do so for the foreseeable future.

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Phobos rising and Earth setting as captured together by Curiosity

10:56 am

Phobos and Earth in the Martian sky
Click for original image.

Cool image time! The picture to the right, enhanced and reduced to post here, was taken by the high resolution camera on the Mars rover Curiosity on September 5, 2024.

What makes this picture unique are the two tiny spots near the upper right. For the first time, Curiosity’s camera was able to capture both the Earth and the Martian moon Phobos in the same picture, when they were also very close to each other in the sky. From the caption:

NASA’s Curiosity Mars rover used its Mast Camera, or Mastcam, to capture this view of Earth setting while Phobos, one of Mars’ two moons, is rising. It’s the first time an image of the two celestial bodies have been captured together from the surface of Mars.

The image is a composite of five short exposures and 12 long exposures all taken on Sept. 5, 2024, the 4,295th Martian day, or sol, of Curiosity’s mission. An inset in the image [found here] shows Phobos on the left and Earth on the right. From the rover’s perspective, the inset area would be about half the width of a thumb held at arm’s length.

The dark shape in the lower left is one of the buttes that surround Curiosity as it has been climbing up Mount Sharp and traversing inside the Gediz Vallis slot canyon.

The inset provides a close-up of the two objects, but the resolution is poor. To me, it is much more interesting to look at the picture to the right, that shows what these two objects actually looked like in the sky of Mars.

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FCC commissioner slams FCC for its partisan hostility to SpaceX

10:27 am

The FCC proves its partisan hostility to SpaceX
The FCC proves its partisan hostility to SpaceX

Even as the FAA has increasingly appeared to be harassing SpaceX with red tape, FCC commissioner Brendan Carr this week slammed his own agency for what appears to be clearly partisan hostility to SpaceX in its recent decisions and public statements.

Carr noted how only last year the FCC had canceled an almost $900 million grant that it had previously awarded to SpaceX for providing rural communities internet access. When it did so, the FCC claimed that the company had failed to “demonstrate that it could deliver the promised service.”

That claim of course was absurd on its face, considering that Starlink was the only available commercial system that was actually doing this, directly to individual rural customers.

Carr noted however that this absurd FCC decision was made even more ridiculous this week by the FCC’s chairperson, Jessica Rosenworcel, who accused SpaceX of being a “monopoly” because of its success in launching Starlink satellites and providing this service ahead of everyone else.
» Read more

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Sierra Space successfully tests equipment for extracting oxygen from the lunar soil

9:57 am

In a press release this week Sierra Space revealed that it has successfully tested an extraction system that can gather up the abrasive lunar regolith and then heat it to high temperatures in order to extract and use the oxygen contained in that soil.

Temperatures in which the Sierra Space Carbothermal Oxygen Production Reactor were tested ranged from minus 45 degrees Celsius to 1,800 degrees Celsius. In addition to the challenges of functioning from sub-zero to hotter-than-lava temperatures, the hardware was required to move the simulated lunar regolith – a very abrasive and jagged material because it does not have the weathering processes found on Earth – through its system. The potentially damaging particles were handled effectively by the hardware and gasses were successfully sealed inside the reactor, thanks to Sierra Space’s use of a patent-pending valve design that previously demonstrated functionality to greater than 10,000 cycles.

The tests confirmed that Sierra Space’s system can successfully handle regolith that would be delivered from a lunar rover or robotic arm and automatically bring it into the reaction chamber, perform the carbothermal reduction reaction process to extract the oxygen from the minerals in the regolith, and remove the processed regolith from the system so the operation can be repeated.

This research is similar to the extraction system the Chinese are developing, though it appears Sierra’s system appears considerably closer to a finished product, as it is already being tested.

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Eutelsat awards multi-launch contract with Mitsubishi

9:42 am

The French communications satellite company Eutelsat has awarded the Japanese company Mitsubishi a multi-contract using its H3 rocket.

The company did not reveal the contract amount or the number of launches involved. The first launches however will begin in 2027, with company officials explaining why they signed the deal.

The operator already has launches mostly covered for deploying its next-generation OneWeb broadband satellites in low Earth orbit (LEO), CEO Eva Berneke recently told SpaceNews. However, these launches include 3D printing specialist Relativity Space’s Terran R vehicle and Europe’s next-generation launcher Ariane 6, which have both already experienced development delays.

Ariane 6 is also part of the multi-billion-dollar launch campaign Amazon plans to kick off this year for its LEO constellation. “Given that Amazon has acquired Ariane 6 rockets, if we wanted to use it in, say, 2027, are we going to fit into their launch manifest or not?” Berneke told SpaceNews in the interview.

There are two interesting aspects to this deal. First, Eutelsat decided it needed to diversify its launch providers. The status of Relativity’s Terran-R rocket remains uncertain, and if it goes under Eutelsat would be left with just Ariane-6, which has its own issues and might not be able to meet the demand.

Second, Eutelsat clearly decided it did not want to give this business to SpaceX. I guarantee SpaceX’s price was less than Mitsubishi’s since the H3 is entirely expendable and very expensive, developed by Mitsubishi primiarly for the Japanese government (which paid the bills) and not as a player in the international launch market. Eutelsat made this choice for probably good and bad reasons. The good reason: All satellite companies need to encourage the success of as many launch providers as possible, to increase its options and competion. Giving business to Mistubishi serves that purpose.

The bad reason? Among many in Europe and elsewhere there is a childish resentment of SpaceX, simply because. No one will say so publicly, and if asked everyone will deny it, but the evidence clearly suggests that this silly emotional factor exists.

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Rocket Lab has launch abort at T-0 seconds

4:15 pm

In attempting to launch five satellites for a French company today from its New Zealand launch facility, Rocket Lab’s Electron rocket aborted the launch at T-0 seconds.

The rocket was stable and quickly safetied by mission control. However, the launch had an instantanous launch window, so no additional attempts could be made today. No word yet on when the next attempt will be scheduled.

This launch would have been the second of five for the French satellite company Kinéis, which is using Rocket Lab to put its 25 satellite internet-of-things constellation into orbit.

One interesting aspect of this and all recent Rocket Lab launches: The company appears to have dropped its effort to make the first stage of the Electron rocket recoverable and reusable. It has recovered several stages after a gentle splashdown in the ocean, but except for the reuse of one engine, it has said nothing about reusing any of those stages. It could be management has decided to shift resources from this project to its new larger Neutron rocket, which is being designed from scratch for reuse and vertical landing. The test data from those Electron reuse attempts has likely been very useful, but the difficulties of redesigning the rocket to be reusable might not make sense financially at this point.

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Indian government approves major space projects, including new rocket, missions to the moon, space station, Venus

3:54 pm

The cabinet of Modi government in India today approved a whole range of major space projects for the next decade, including a sample return mission to the moon, the building of the first module of that country’s space station, an orbiter to Venus, and the development of a new more powerful but reusable rocket.

The lunar sample return mission, dubbed Chandrayaan-4, is targeting a launch about three years from now, and will be shaped to provide information leading to a manned lunar mission by 2040.

The cabinet also approved the development of the first module of its proposed Bharatiya Antariksh Station (BAS), targeting a 2028 launch date with the full station completed by 2035. This approval also included a plan for manned and unmanned missions leading up to the launch of that first module.

Under the programme eight missions are envisaged — four under the ongoing Gaganyaan programme by 2026, and development of BAS-1, and another four missions for demonstration and validation of various technologies by December 2028.

The Venus Orbiter is now targeting a 2028 launch.

The new launch rocket, dubbed the Next Generation Launch Vehicle (NGLV) will aim for reusability and be 1.5 times more powerful than the India’s presently most powerful rocket, the Launch Vehicle Mark-3 (LVM-3). The program to develop this new rocket however appears overally long (8 years) with relatively little flight testing (3 flights).

Overall, this government space program will likely energize India’s new commercial aerospace industry, as the Modi government is also attempting to shift as much of this work to private companies, rather than have its space agency ISRO do the work.

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September 18, 2024 Quick space links

3:18 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

 

 

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Pushback: Pastor who was arrested in Seattle for reading the Bible aloud wins in court

2:49 pm

Are Americans finally waking up and emulating their country's founders?

Fight! Fight! Fight!: In 2022 Pastor Matthew Meinecke was arrested two different times by the Seattle police when he attended pro-abortion rallies and simply stood in the crowd and read the Bible aloud. What was worse was that when he was attacked by the pro-abortion protesters the police arrested him, not the attackers.

The conflict came about because Pastor Meinecke went to a Seattle pro-abortion rally to read the Bible aloud, hold up a sign and hand out literature. He was censored and arrested on two separate occasions for simply reading the Bible to others because his Gospel-oriented message triggered hostile reactions from activists.

Despite his evangelistic and peaceful intent, some individuals in the crowd, including Antifa members, did not receive the message well. They took Meinecke’s Bible away from him, ripped out pages, knocked Meinecke down and took one of his shoes. When Seattle police finally arrived at the scene, they did not offer any aid to Meinecke. Instead, they ordered Meinecke to leave and go to a space where he could no longer convey his message, and then arrested him when he declined to do so.

The same thing happened two days later at public park during a queer “PrideFest.”
» Read more

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Axiom in trouble?

10:42 am

Axiom's space station assembly sequence
The assembly sequence for Axiom’s space station while attached to ISS.
Click for original image.

A long article yesterday in Forbes described serious financial issues with the space station startup Axiom, problems so severe the company is laying off workers and has trouble meeting its payroll.

The problems have been accentuated by hiring too many people and the delays in building its modules for attachment to ISS.

The lack of fresh capital has exacerbated long-standing financial challenges that have grown alongside Axiom’s payroll, which earlier this year was nearly 1,000 employees. Sources familiar with the company’s operations told Forbes that cofounder and CEO Michael Suffredini, who spent 30 years at NASA, ran Axiom like a big government program instead of the resource-constrained startup it really was. His mandate to staff up to 800 workers by the end of 2022 led to mass hiring so detached from product development needs that new engineers often found themselves with nothing to do, these people said.

When Axiom was founded in 2016, it promised investors the first station module would be aloft in 2020.

That first module is presently not expected to launch until 2026, six years late. Its main structure is being built by Thales-Alenia in Europe, and work there has been much slower than expected, possibly because Axiom has been slow in providing the expected capital.

The article also describes in detail the financial loss Axiom has experienced in its manned private flights to ISS, where it hires SpaceX to provide the rocket and capsule. The costs have been higher than expected, made worse by requirements and charges imposed on it by NASA. As a result the company lost money on the first three flights, and expects the fourth this year to only break-even.

Whether Axiom will survive, based on this article, is very questionable. We will just have to wait and see however. All other indications suggest it is in a stronger position than at least one other commercial station, Blue Origin-led Orbital Reef, and matches well with Voyager Space’s Starlab. These of the three stations being built with NASA’s financial help.

The one station that might beat them all however remains the entirely private Vast Haven-1 station. It has taken no government money and yet expects to launch its first small module before any of the former stations, in the second half of 2026. and immediatley fly astronauts to it for a 30-day mission.

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