Month: January 2026

NASA: The leak in the Zvezda module on ISS has apparently been sealed

10:51 am

According to one NASA official, the leaks in the Zvezda module on ISS that have been on-going for more than five years have apparently all been sealed.

However, recently two sources indicated that the leaks have stopped. And NASA has now confirmed this. “Following additional inspections and sealing activities, the pressure in the transfer tunnel attached to the Zvezda Service Module of the International Space Station, known as the PrK, is holding steady in a stable configuration,” a space agency spokesman, Josh Finch, told Ars. “NASA and Roscosmos continue to monitor and investigate the previously observed cracks for any future changes that may occur.”

While good news, no one should feel sanguine. The leaks occurred because the hull of Zvezda has developed stress fractures, due to age (more than a quarter century in orbit) and the repeated dockings to its aft port. Future fractures and leaks are still possible, with the chance of a catastrophic failure very possible.

It would be prudent for NASA to continue to shut the hatch between the U.S. and Russian halves of the station, whenever a docking is taking place.

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India’s space agency: At least six launches in 2026

10:42 am

According to remarks by the head of India’s space agency ISRO last week, the agency is planning at least six launches in 2026, including two unmanned test flights of its Gaganyaan manned capsule.

Also planned will be the first launch of its PSLV rocket that was manufactured entirely by commercial vendors, rather than ISRO itself. The goal by the Modi government had been to transfer ownership of the rocket to private companies, but ISRO revised that to retain control and ownership while giving manufacture to the private companies HAL & L&T, thus defeating the essential goal of shifting power to the private sector.

The total does not include possible orbital attempts by two rocket startups, Skyroot and Agnikul.

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SpaceX completes first launch in 2026

12:36 am

The beat goes on! SpaceX tonight successfully placed an Italian Earth observation satellite into orbit, its Falcon 9 lifting off from Vandenberg Space Force Base.

The satellite’s data will be used by Italy for both military and civil purposes. The rocket’s first stage completed its 21st flight, landing back at Vandenberg. The two fairings completed their 2nd and 23rd flights respectively.

At this moment, SpaceX has the only launch in 2026.

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Many Martian mysteries in one spot

11:29 am

Many Martian mysteries in one spot
Click for original image.

Just because there are no new images coming back from Mars at this time because the Sun is in the way does not mean we can’t enjoy more cool Martian images. The picture to the right, cropped, reduced, and sharpened to post here, was taken on October 20, 2025 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

Labeled merely a “terrain sample,” this means it was taken not as part of any particular research project but to fill a gap in the camera’s schedule. The camera team needs to take regular photographs in order to maintain the camera’s proper temperature, and when there is a long gap they add a terrain sample image to the schedule. Usually they try to pick some target of interest.

In this case the target is this 2,500-foot-high cliff, in which we can see a whole range of Martian geological mysteries. First there are the slope streaks on the cliff, a feature unique to Mars but as yet unexplained. Resembling avalanches, these streaks leave no debris piles at their base, do not change the topography in any way, and can appear randomly throughout the year, fading with time. Though the streaks in this picture are dark, streaks can also be bright.

Both the parallel ridges at the base of the cliff, as well as the cliff itself, are remnants of other major geological events, at least based on present theories.
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SpaceX doing trial runs of specialized barge for transporting Starship/Superheavy from Boca Chica to Florida

9:32 am

SpaceX has now confirmed that it is doing trial runs of a barge specifically designed for transporting Starship/Superheavy from the manufacturing facility in Boca Chica to its Florida launchpads.

[SpaceX’s Vice President of Launch, Kiko] Dontchev also clarified that both the Super Heavy booster and Starship upper stage would be tilted to a horizontal position for maritime transit, in response to an artist’s rendering of a Starship traveling vertically aboard a vessel. “Initial deliveries are a single booster or ship per trip, with the plan to move to multiple vehicles per transit sooner than later,” he wrote. “You’ll thank me later.”

These barge trials, combined with the fact that SpaceX has already shipped significant Starship/Superheavy components to Florida even as it builds rocket manufacturing facility there, strongly suggest the first Florida launches are not too far in the future, possibly even this year.

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ESA funds Danish lunar orbiter

9:16 am

The European Space Agency (ESA) has agreed to fund the first Danish-built interplanetary probe, a smallsat lunar orbiter dubbed Mani that will launch in ’29 and map the Moon’s surface.

The Máni mission is a lunar mission that will use a satellite to map the Moon’s surface with high-resolution images and create detailed 3D maps. The goal is to make it safer for astronauts and lunar rovers to land and move around on the Moon. The satellite will orbit the Moon’s north and south poles, which are key areas for future human missions.

The mission will also map how light reflects from areas on the Moon that are used to study Earth’s ability to reflect sunlight onto the lunar surface – the so-called earthshine. This knowledge could improve our understanding of how Earth’s climate will evolve.

The University of Copenhagen leads the mission and is responsible for the mission’s Science Operations Center, which will plan which areas to map and analyze the vast number of images generated.[emphasis mine]

I love how this European press release about a lunar orbiter somehow makes its most important mission studying climate change on Earth. Utterly idiotic.

Mani will use the changing shadows to create detailed topographic maps. As it is unlikely it will be capable of providing better data than produced over the past sixteen years by Lunar Reconnaissance Orbiter (LRO), this mission is mostly an engineering demo by Denmark and the Danish startup, Space Inventor, that is building the satellite for a consortium of universities. If successful the satellite will possibly be able to replace LRO (which is going to fail sooner or later), and provide data on any lunar surface changes that occur in the future.

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SpaceX to do a major orbital reconfiguration of its Starlink constellation

9:03 am

According to a X post yesterday by Michael Nicholls, SpaceX’s Starlink engineering vice-president, the company over the next year will be lowering the orbits of more than 4,000 satellites in its Starlink constellation, in order to allow the company to more quickly de-orbit them if they fail.

We are lowering all Starlink satellites orbiting at ~550 km to ~480 km (~4400 satellites) over the course of 2026. The shell lowering is being tightly coordinated with other operators, regulators, and USSPACECOM.

Lowering the satellites results in condensing Starlink orbits, and will increase space safety in several ways. As solar mininum approaches, atmospheric density decreases which means the ballistic decay time at any given altitude increases – lowering will mean a >80% reduction in ballistic decay time in solar minimum, or 4+ years reduced to a few months. Correspondingly, the number of debris objects and planned satellite constellations is significantly lower below 500 km, reducing the aggregate likelihood of collision.

Nicholls notes that it presently has only two dead satellites in the present fleet of 9,000 satellites, but decided to do this move regardless, as it also apparently will reduce collision risks with other satellites as well.

Not surprisingly, China’s state-run press and our anti-capitalism propaganda press immediately tried to give China credit for this change, while lambasting SpaceX. That China is contributing to the risk of collision with its own multiple giant satellite constellations and is doing nothing on its own is apparently irrelevant to both. Our nice of them.

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The three week communications blackout from Mars has begun

11:30 am

Last image before blackout from Curiosity
Click for original.

Last image before blackout from Perseverance
Click for original.

The two images to the right, both downloaded today (here and here) from the Mars rovers Curiosity (top) and Perseverance, illustrate quite clearly the beginning of the three-week-long communications blackout from Mars caused every two years when the orbits of Earth and Mars places the Sun in-between. As the Curiosity science team noted in a December 22, 2025 update:

This holiday season coincides with conjunction — every two years, because of their different orbits, Earth and Mars are obstructed from one another by the Sun; this one will last from Dec. 27 to Jan. 20. We do not like to send commands through the Sun in case they get scrambled, so we have been finishing up a few last scientific observations before preparing Curiosity for its quiet conjunction break.

Apparently engineers were able to squeeze data and images from Mars for a few extra days, but the incomplete nature of these two pictures — combined with the lack of any other new images today — tells us that the blackout has definitely begun. That they were able to get these additional images after conjunction began suggests the blackout might also end a bit earlier than expected.

Though there is always a concern that something could go wrong while communications are blocked, the risks are small. The science teams for all the Mars orbiters and rovers have dealt with this situation now almost a dozen times since operations became routine there more than a quarter century ago.

The only spacecraft at real risk this conjunction is Maven. Contact was lost from it in early December for unknown reasons, and all efforts to regain communications have so far failed. All engineers know from the little data they have gotten back is it appears to be tumbling. This three week blackout will make any chance of recovery extremely unlikely.

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The global launch industry in 2025: The real space race is between SpaceX and China

8:01 am

In 2025 the worldwide revolution in rocketry that began about a decade ago continued. Across the globe new private commercial rocket companies are forming, not just in the United States. And across the globe, the three-quarters-of-a century domination by government space agencies is receding, though those agencies are right now pushing back with all their might to protect their turf.

Dominating this revolution in 2025 in every way possible however were two entities, one a private American company and the second a communist nation attempting to imitate capitalism. The former is SpaceX, accomplishing more in this single year than whole nations and even the whole globe had managed in any year since the launch of Sputnik. The latter is China, which in 2025 became a true space power, its achievements matching and even exceeding anything done by either the U.S. or the Soviet Union for most of the space age.
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