Category: Behind The Black

A Martian landscape of volcanic pimples

1:17 pm

A Martian landscape of volcanic pimples
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and downloaded on August 3, 2025. Labeled as a “terrain sample,” such images are usually taken not as part of any specific research request but because the camera team needs to fill a gap in the camera’s schedule so as to maintain its proper temperature. When they do this, they always try to pick interesting targets within the time window, and usually succeed.

In this case, the camera team picked a location in the middle of Isidis Planitia, one of Mars’ four biggest basins thought to have been formed from a major impact several billion years ago, focusing on an area covered with these strange knobs that have craterlike depressions at their peaks.

According research published in 2010 [pdf], it is believed these cones — all of which are only a few feet high — are the result of volcanic activity following the impact that formed Isidis four billion years ago. In a sense, they are leftover pimples from that impact and the subsequent volcanic activity within that melted basin.
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European engineers develop a tumbling rover design moved by the Martian wind

10:15 am

Tumbleweed being tested on sandy ground
Tumbleweed being tested on sandy ground. Click for video.

European engineers at Aarhus University in Denmark have now developed and tested a tumbling rover design that is propelled solely by the Martian wind. You can read their most recent paper here.

Not surprisingly, they call it “Tumbleweed.” The screen capture to the right comes from a video of a wind tunnel test proving the Martian atmosphere could move a prototype on sandy ground. The engineers also did similar tests successfully on rocky and coarse ground.

In July 2025, Team Tumbleweed conducted a week-long experimental campaign, supported by Europlanet, at Aarhus University’s Planetary Environment Facility. Using scaled prototypes with 30-, 40- and 50-centimetre diameters, the team carried out static and dynamic tests in a wind tunnel with a variety of wind speeds and ground surfaces under a low atmospheric pressure of 17 millibars.

Results showed that wind speeds of 9-10 metres per second were sufficient to set the rover in motion over a range of Mars-like terrains including smooth and rough surfaces, sand, pebbles and boulder fields. Onboard instruments successfully recorded data during tumbling and the rover’s behaviour matched fluid-dynamics modelling, validating simulations. The scale-model prototypes were able to climb up a slope of 11.5 degrees in the chamber – equivalent to approximately 30 degrees on Mars – demonstrating that the rover could traverse even unfavourable slopes.

Their concept is to send a swarm of Tumbleweeds to Mars, where they could cheaply document prevailing wind and speeds globally. More sophisticated versions could act as full weather stations, as well as provide in situ data about the landscapes they traverse.

The concept is still in its development stage. The next stage of testing will see if Tumbleweed will work with some science sensors attached.

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Axiom hires Redwire to build the solar panels for its first station module

9:18 am

Axiom's new module assembly sequence
Axiom’s assembly sequence for its planned station, initially attached to ISS but subsequently detached

The space station startup Axiom today announced that it has signed an agreement with the space hardware company Redwire to build the solar panels for its first station module, now under construction.

The companies announced Sept. 25 that Redwire will provide a version of its Roll-Out Solar Array, or ROSA, to Axiom for use on Axiom Station’s Payload Power Thermal Module, known as AxPPTM. AxPPTM is the first module Axiom plans to launch for its commercial station. Under a revised assembly schedule announced last December, AxPPTM will berth with one of two ports on the International Space Station used by Cygnus cargo spacecraft.

It would remain there until Axiom launches a second module, called Hab1. At that point, AxPPTM would unberth from the ISS and dock with Hab1, forming the initial station that can support four-person crews. Axiom would later add more modules.

At present Axiom is targeting a 2026 launch of the AxPPTM module. The hull, built by Thales Alenia, is presently being tested in Europe, and is expected to shipped to Houston for integration later this year.

The four commercial stations under development, ranked by me based on their present level of progress:
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Two launches this morning

8:43 am

In the last six hours two different American companies successfully completed launches from the same spaceport.

First, SpaceX placed another 28 Starlink satellites in orbit, its Falcon 9 rocket lifting off from Cape Canaveral in Florida, with the first stage completing its 22nd flight by landing on a drone ship in the Atlantic.

The company also has another Starlink launch for this evening.

Next, ULA placed 27 more of Amazon’s Kuiper satellites into orbit, its Atlas-5 rocket also lifting off from Cape Canaveral in Florida.

Amazon now has 129 Kuiper satellites in orbit. It needs to get another 1,471 in orbit by July 2026 in order to meet its licence requirements by the FCC. While ULA appears to be ramping up regular launches for Amazon, having a contract for 46 launches (having so far completed three in 2025), the contracts for Blue Origin’s New Glenn (27 launches), and ArianeGroup’s Ariane-6 (18 launches) are more uncertain. Neither company has achieved any launches on their contracts, and it is not clear when either company, especially Blue Origin, will ever begin regular launches.

This was ULA’s fourth launch in 2025, so it does not yet qualify for the leader board in the 2025 launch race. The company says it hopes to launch about eight more times this year, but based on its present launch pace of about one launch every three months, that seems unlikely. As for the Atlas-5 rocket, ULA now has twelve rockets in left in stock before the rocket is retired for good. Most I think are reserved for Kuiper launches.

The leaders in the 2025 launch race:

124 SpaceX
55 China
13 Russia
12 Rocket Lab

SpaceX now leads the rest of the world in successful launches, 124 to 95.

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Starlab selects Vivace to build the primary structure of its proposed space station

8:25 am

The American space stations under construction
The American space stations under development

The Starlab consortium today announced that it has chosen the Louisiana space hardware company Vivace to build the primary structure of its proposed space station, designed to launch as one very large module inside SpaceX’s Starship.

The aluminum-based structure, one of the largest single spaceflight structures ever developed for launch, will be built at Vivace’s facility in New Orleans, La., with additional development and testing support from [NASA’s] Michoud Assembly Facility (MAF) in Louisiana.

…The program will use Vivace’s New Orleans facility at MAF for fabrication, with support from U.S. government partners for subject matter expertise, structural analysis and potential test infrastructure. MAF will also support specialized large-scale manufacturing and assembly operations.

It appears Starlab chose this subcontractor because of its extensive ties to NASA, likely in the hope this will increase the chances it will win the upcoming station construction contracts NASA is expected to issue in the next year or so.

The four commercial stations under development, ranked by me based on their present level of progress:
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NASA awards orbital servicing startup Katalyst contract to save the Gehrels Swift space telescope

8:04 am

Katalyst's proposed Swift rescue mission
Katalyst’s proposed Swift rescue mission.
Click for original image.

NASA today announced that it has awarded the orbital servicing startup Katalyst a $30 million contract to use a robotic servicing satellite to rendezvous and attach itself to the Gehrels Swift space telescope and raise its orbit.

Right now the telescope’s orbit is decaying, and it will burn up sometime in 2029 if something isn’t done. As one of the most successful low-cost astronomy space telescopes ever launched — central to the study of gamma ray bursts — spending this small amount to save Gehrels seems a no-brainer. In mid-August NASA had awarded Katalyst and a second company small contracts to study whether they could do this mission. Today’s announcement means NASA liked Katalyst’s proposal.

Whether this startup can do it however remains unknown. It appears from its own press release today describing this contract award that the company decided to add Gehrels to its already planned first demo servicing mission planned for next year.

The schedule is also unprecedented: while satellite servicing typically takes years to plan, Katalyst must be ready to launch in eight months, with docking operations scheduled for mid-2026, to save Swift before it burns up.

…Katalyst was already on schedule for an in-space demonstration of its rendezvous, proximity operations, and docking technology for June 2026. The demonstration would buy down technical risk ahead of the planned launch of Katalyst’s multi-mission robotic spacecraft, NEXUS, in 2027. When NASA raised the alarm about Swift, Katalyst seized the opportunity to pivot to a live rescue operation which would demonstrate similar capabilities.

The mission is even further risky in that Swift has no grapple or docking port for Katalyst’s satellite to attach to. Instead, it “will rely on a custom-built robotic capture mechanism that will attach to a feature on the satellite’s main structure–without damaging sensitive instruments.”

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Starbase to take control of nearby beaches

12:33 pm

The new government of Starbase has reached an agreement with its local county to take control of the nearby beaches that will allow Starbase to not only maintain them but close them when it chooses.

Cameron County commissioners approved the agreement to hand over a portion of Boca Chica Beach on Tuesday. The deal outlines cleaning and maintenance obligations among other terms. Under the agreement, Starbase will be allowed to set requirements for beachfront construction and special events on the beach.

…The compact includes a plan to address beach erosion, which occurred at a rate of 10 to 20 feet per year from 1950 to 2012, Starbase Commissioner Jordan Buss told the county commissioners, citing a study conducted by the University of Texas at Arlington.

This agreement mirrors one Starbase had previously made with South Padre Island for other beach portions.

The article once again gives lots of column space to the fringe groups that oppose SpaceX and its operations at Boca Chica, even though the evidence suggests they have almost no support from the general public.

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Another day, another leftist sniper; Another day, another Democrat incites violence

12:02 pm

The recovered rounds from today's leftist sniper
Click for source from FBI.

The madness from the left continues: A rooftop sniper who had engraved “anti-ICE” messages on his ammunition today killed on one and injured two in Dallas before killing himself.

The now-deceased shooter who targeted a Dallas, Texas ICE facility wrote “anti-ICE” messages on his rounds, according to the FBI.

Three people at an ICE facility were shot by a gunman on the roof of an adjacent building on Wednesday morning. The victims were reportedly detainees, though law enforcement did not confirm this on Wednesday. Authorities did confirm, however, that no officers were injured in the shooting. One of the victims died at the scene, and the shooter died of a self-inflicted gunshot wound.

At this same Dallas ICE facility last month a man was arrested when he claimed he had a bomb in his backpack. Nor are these recent attacks limited to this one facility.

This incident comes just two weeks after a threatening letter with a white powdery substance was sent to an ICE office in New York City. Less than a week ago, a violent rioter was charged with assault in San Francisco after he threatened to stab an ICE officer and harm his family,” a DHS senior official said in a statement about the incident at the time.

In another case six anti-ICE vandals have been charged in a shooting at a different ICE facility in Texas in July.

According to federal court documents, police initially responded to reports of vandalism at the facility, with several cars spray-painted with anti-immigration statements. However, when authorities arrived on the scene, one was shot in the neck. Authorities said the officer who was shot survived.

Meanwhile, California governor Gavin Newsom last night continued the Democratic Party’s vicious rhetoric that has encouraged this behavior by saying on Stephen Colbert’s leftwing propaganda show that ICE is President Trump’s “private domestic army.” Nor did Newsom stop there.
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Chinese satellite photographs commercial Maxar satellite

10:41 am

One Jilin-1 image of Maxar satellite
Click for original. More images here.

In what appears to be a tit-for-tat competition, a Chinese reconnaissance satellite, dubbed Jilin-1, has now taken photographs of a commercial Earth imaging satellite owned by Maxar, that the company had previously used to photograph other Chinese satellites.

Chinese commercial remote sensing constellation operator Changguang Satellite Technology (CGST), a spinoff from an arm of the state-owned Chinese Academy of Sciences, published images Sept. 13 of a Maxar Worldview Legion 2 satellite.

The images were taken by CGST’s Jilin-1 remote sensing constellation satellites across a few hours on Sept. 8, from ranges between 40-55 kilometers, showing details of the spacecraft. While part of an expanding Earth observation constellation, Jilin-1 satellites have apparently had their operations adjusted to include Non-Earth Imaging (NEI).

Maxar had earlier published high resolution images of China’s Shijan-26 satellite, being used to test remote sensing and surveillance technologies.

None of this is particular new, though for China the technology is the most advanced it has ever had. Nations have been launching high resolution surveillance satellites since the 1960s. Nor is there anything anyone can do about it. Nations will always do this. If anything, having this ability to observe each other closely will likely reduce tensions and misunderstandings.

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Firefly’s stock sags due to poor revenue numbers in 1st quarter report

10:06 am

Firefly's stock price since IPO

Apparently Wall Street has lost faith in the rocket startup Firefly since that company went public last month. The stock zoomed initially, but has now sagged due to a poor 1st quarter report that showed revenues far below expectations.

The stock’s initial price had been predicted to range from $35 to $39, but quickly rose to $70.

Since then the price has steadily dropped, so that today it sits about about $41.

The news reports seem to think this indicates bad things for the company. I see this as simply a long term correction from the initial over-enthusiasm by buyers. The company had first offered a stock price close to this number. The price is now exactly where Firefly predicted.

If I was interested in buying stock, this might actually be a good time to buy. As a rocket startup, Firefly appears quite solid, being the only startup to successfully soft land on the Moon. Its Alpha rocket has also been cleared for further launches, and though it has had a mixed launch record, with several launches failing due to upper stage issues, it has likely solved these problems.

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