Behind The Black – Robert Zimmerman

SpaceX launches 25 more Starlink satellites; uses 1st stage for 31st time

February 2, 2026 9:28 am Robert Zimmerman

SpaceX this morning successfully placed another 25 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg in California.

The 1st stage (B1071) completed its 31st flight, landing on a drone ship in the Pacific. Though this number set no records, it moved that booster closer to catching the records for the most reused launch vehicle, presently held by the shuttle Discovery:

39 Discovery space shuttle
33 Atlantis space shuttle
32 Falcon 9 booster B1067
31 Falcon 9 booster B1071
29 Falcon 9 booster B1063
28 Falcon 9 booster B1069
28 Columbia space shuttle

Sources here and here.

The 2026 launch race:

14 SpaceX
6 China
2 Rocket Lab

This list is likely inaccurate, as Russia had a Soyuz-2 launch of a classified payload planned just prior to SpaceX’s launch, but as yet there been no confirmation of its success. SpaceX also has another launch schedule for this evening. I will include both when I update then.

3 comments

Sunspot update: Maybe solar maximum isn’t over?

February 2, 2026 9:15 am Robert Zimmerman

The uncertainty of science! It is time for another sunspot update. It is also time to note that once again the Sun appears to be confounding the predictions of NOAA’s solar science panel. Below is NOAA’s monthly graph of the sunspot activity on the Earth-facing hemisphere, updated by NOAA to include the activity in January but annotated with extra information by me to illustrate the larger scientific context.

Since April 2025 that science panel has been predicting that the solar maximum has passed and the Sun was beginning the ramp down to solar minimum, now expected to occur around 2031-32. And in the ten months since, sunspot activity has appeared to more or less track that prediction, as indicated by the purple/magenta curve line on the graph below.

It now appears that this prediction might very well have been premature.
» Read more

2 comments

Annual February birthday fund-raising campaign for Behind the Black

February 2, 2026 12:13 am Robert Zimmerman

Scroll down for the most recent stories.

Please forgive this pleading appeal, but to survive I have to do several fund-raising campaigns each year. Please consider helping me celebrate my 73rd birthday this month by donating or subscribing to Behind the Black.

As I have noted repeatedly, I am routinely ahead of the curve in analyzing the news and what it means for the future. Fifteen years ago I said NASA’s SLS rocket was garbage and should be cancelled. Almost a decade ago I said its Orion capsule was a lie and a bad idea. As early as 1998, long before almost anyone else, I predicted in my first book, Genesis: The Story of Apollo 8, that private enterprise and freedom would conquer the solar system, not government. And while everyone else in the media still thinks Mars has no water, I have been reporting the real results from the orbiters now for more than five years, that Mars is in fact a planet largely covered with ice.

I could provide many more examples. If you want to know what others will discover a decade hence, read what I write here at Behind the Black. Read my history books if you want to find out why the initial exploration of the solar system has transpired as it has. You will also find out what is going to happen in the next century.

Though it might sound like I am bragging with this last claim, my overall track record bears it out.

So please consider donating or subscribing to Behind the Black, either by giving a one-time contribution or a regular subscription. I could really use the support at this time. There are five ways of doing so:

1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get. (Note: if your bank requests you reference “Diane Zimmerman” in using my email address, do so. We are temporarily using one of her accounts, tied to my email address.)

2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation. Takes about a 10% cut.

3. A Paypal Donation or subscription, which takes about a 15% cut:

4. Donate by check, payable to Robert Zimmerman. What you give is what I get. Mail checks to:

Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652

5. Finally, you can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.

This post will remain at the top of the page until the end of the month.

2 comments

SpaceX submits proposal to FCC for new constellation of one million satellites

January 31, 2026 3:03 pm Robert Zimmerman

SpaceX yesterday submitted a proposal to Federal Communications Commission to build new satellite constellation made up of one million satellites designed as an orbiting data center.

In one 8-page document, SpaceX describes its proposed Orbital Data Center system. “To deliver the compute capacity required for large scale AI inference and data center applications serving billions of users globally, SpaceX aims to deploy a system of up to one million satellites to operate within narrow orbital shells spanning up to 50 km each (leaving sufficient room to deconflict against other systems with comparable ambitions),” the company says.

The same satellites would harness the sun’s energy, orbiting at “between 500 km and 2,000 km altitude and 30 degrees and sun-synchronous orbit inclinations,” the company adds. The orbiting data centers would also use “optical links,” or lasers, to connect with Starlink, using the existing satellite internet system to route traffic to users below.

“Orbital data centers are the most efficient way to meet the accelerating demand for AI computing power,” the filing adds in bold, pointing to the growing energy costs of AI data centers on Earth. The company is also betting it can launch the space-based data centers at a rapid clip using SpaceX’s more powerful Starship vehicle, which is also crucial to upgrading Starlink with next-generation satellites.

The FCC is likely not going to okay this submission, as written. It is clearly very preliminary, but appears to be consistent with SpaceX’s way of doing business. It sees an opportunity, and jumps in with full force. While others are working up their plans, SpaceX submits its first license proposal outlining the plan in very broad terms, thus getting there first.

And SpaceX is very well positioned to launch this constellation as promised. It has the rockets, and has proven itself capable of running a satellite constellation of vast size.

30 comments

Axiom wins slot for next tourist mission to ISS

January 31, 2026 2:25 pm Robert Zimmerman

NASA yesterday announced that it awarded the space station startup Axiom the next slot for a tourist mission to ISS.

NASA and Axiom Space have signed an order for the fifth private astronaut mission to the International Space Station, targeted to launch no earlier than January 2027 from the agency’s Kennedy Space Center in Florida.

…Axiom Mission 5 is expected to spend up to 14 days aboard the space station. A specific launch date will depend on overall spacecraft traffic at the orbital outpost and other planning considerations.

Both Axiom and the space station startup Vast had been bidding for the fifth and sixth tourist slots. That Axiom had already done this four times previously was probably NASA’s reasons for choosing it. The agency has not yet decided on who will get the sixth slot, targeting a mission likely in 2028. My bet is that it will give to Vast, because by then Vast’s own demo station Haven-1 will have launched and been visited, thus giving that company some of the experience Axiom already has.

4 comments

Russia in discussions with Malaysian province about potential spaceport

January 31, 2026 1:49 pm Robert Zimmerman

Proposed spaceports in Malaysia

Officials from Glavcosmos, the commercial division of Russia’s Roscosmos space agency, have been holding meetings with officials from the Malaysian province of Sabah about building a spaceport there.

Glavkosmos said technical studies identify Sabah as the most suitable location in Southeast Asia for orbital launches, including low-earth and sun-synchronous orbits, due to its strategic geography and safe rocket stage drop zones. The proposed spaceport could create more than 2,000 high-income jobs and boost local supporting industries.

One year ago, in January 2025, the Sabah government announced it was holding similar discussions with the Ukraine. It seems either those talks fell through, or Russia decided to move in and block the Ukraine from making a deal.

A second Malaysian state, Pahang, is also planning a spaceport, working instead with China.

In all cases, it does appear for some reason Malaysia is not very interested in working with western nations.

8 comments

Blue Origin shuts down New Shepard suborbital tourist flights

January 31, 2026 1:22 pm Robert Zimmerman

Blue Origin yesterday announced it is “pausing” the suborbital tourist flights of its New Shepard spacecraft for no less than two years.

Blue Origin today announced it will pause its New Shepard flights and shift resources to further accelerate development of the company’s human lunar capabilities. The decision reflects Blue Origin’s commitment to the nation’s goal of returning to the Moon and establishing a permanent, sustained lunar presence.

Those “lunar capabilites” not only include its lunar landers, both manned and unmanned, but its New Glenn rocket, which it wants to sell to NASA to use for these missions. Both need more attention. In addition, it could be the company’s CEO, David Limp, wants to allocate more resources to the company’s Orbital Reef space station proposal, which has been sitting dead in the water for the past year-plus. All these projects have been very slow to get out of the starting gate, partly because of the very leisurely culture that Blue Origin’s previous CEO installed, and partly because the company has put out too many projects it is not focusing well on finishing.

There is also likely a third reason: New Shepard was not making a profit. While the company has been flying it quite regularly in recent months, it does not appear it could ever recover its costs. Moreover, I suspect the demand for these short suborbital tourist flights has diminished with advent of orbital tourism and the soon-to-arrive multiple commercial space stations.

15 comments

Amazon asks FCC for time extension for launching its Leo constellation

January 31, 2026 11:22 am Robert Zimmerman

Amazon yesterday submitted a request to the Federal Communications Commission to extend the July deadline on its license for its Leo internet satellite constellation, which presently requires it to have 1,616 satellites in orbit by that date.

At present Amazon has 181 satellites in orbit, all launched in the last ten months. At that pace there is no chance the company can meet its FCC requirement. From its FCC submission:

While Amazon Leo will meet the deadline for full deployment of its constellation established by its license and the Commission’s rules, launch delays will cause it to fall short of the interim milestone requirement to deploy half of its originally authorized constellation by July 30, 2026. The Commission’s rules provide for extension of such milestones where, as here, delay arises from unforeseeable circumstances beyond an operator’s control or overriding public interest considerations favor an extension.

Because it meets both criteria, Amazon Leo respectfully requests a 24-month extension of its 50% milestone to July 30, 2028, or alternatively, a waiver of this interim requirement.

In its submission Amazon claims the delay is entirely the fault of the rocket companies it was relying on to launch the satellites, but that is a bogus claim. It initially choose to depend almost entirely on three new rockets (Blue Origin’s New Glenn, ULA’s Vulcan, and Arianespace’s Ariane-6), all of which had not launched and were still under development. To expect these to launch on time was absurd.

Furthermore, its ULA contract also called for launches using company’s already operational Atlas-5 rocket, which Amazon claims were delayed because of “unexpected anomalies and delays caused by issues with its vehicle fairings and solid rocket boosters.” I don’t buy it, and suspect the real cause was that Amazon was unable to produce the satellites on time.

Faced with these delays and a stockholder lawsuit, Amazon subsequently signed SpaceX to do three launches, which that company did quickly, in less than four months. If Amazon had truly wanted to get its Leo satellites in orbit on time, it would have given SpaceX more launches and gotten it done.

Nonetheless, it is likely the FCC will agree to Amazon’s extension request. The company has now shown it is committed to the process and intends to get its constellation in orbit. It is not sitting on its license doing nothing. I would not be surprised however if the FCC imposes some new requirements in an effort to force Amazon to launch more satellites more quickly.

8 comments

Comet K1/Atlas has broken apart, not interstellar Comet 3I/Atlas

January 31, 2026 10:37 am Robert Zimmerman

CORRECTION: The image to the right is not that of interstellar Comet 3I/Atlas, as I reported earlier today. I misread the Gemini Telescope release. This is comet K1/Atlas, another comet from our own solar system that made its close approach to the Sun in October, when it broke up.

The the latest image from the Gemini North Telescope in Hawaii shows at least four sections slowly drifting apart.

The picture to the right, cropped to post here, was taken on December 6, 2025. Gemini’s previous image, taken in November 11th, shows about the same number of objects, but clustered much more closely together.

It appears that as the comet made its closest approach, the stress was too great. This is not surprising, as it happens to many comets that get too close to the Sun.

Sorry for the error and hat tip to reader Tom Laskowski for letting me know. I need to look at the names of comets named after the ATLAS telescope, as they are very similar and most are NOT interstellar comet 3I/Atlas.

8 comments

China launches Algerian satellite

January 31, 2026 10:23 am Robert Zimmerman

China today successfully placed an Algerian “remote sensing” satellite into orbit, its Long March 2C rocket lifting off from its Jiuquan spaceport in northwest China.

No word on where the rocket’s lower stages, using very toxic hypergolic fuels, crashed inside China. China’s state-run press also said little about the satellite, other than claiming it would be used for “land planning and disaster prevention and mitigation.” This however doesn’t match what “remote sensing” satellites usually do, which is military surveillance.

The 2026 launch race:

13 SpaceX
6 China
2 Rocket Lab

2 comments

January 30, 2026 Zimmerman/Batchelor podcast

January 30, 2026 7:35 pm Robert Zimmerman

Embedded below the fold.

To listen to all of John Batchelor’s podcasts, go here.
» Read more

General Electric – Conquest of the Cascades

January 30, 2026 6:01 pm Robert Zimmerman

An evening pause: According to this website, this documentary was “made by General Electric between 1928 and 1929 to commemorate the completion of this monumental [8-mile-long] tunnel which took 1800 workers and three years to construct.”

Three years! Today that’s how long it would take just to get the environmental assessment written and approved.

Hat tip Blair Ivey.

10 comments

January 30, 2026 Quick space links

January 30, 2026 2:48 pm Robert Zimmerman

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.

PLD provides detailed update on construction of its MIURA 5 rocket
Very impressive video. They continue to appear on schedule for a 2026 launch.

Astrolab touts its FLEX unmanned demo lunar rover, and its compact configuration during transport
Once on the Moon it will unfold.

Chinese pseudo-company Ispace admits the first launch of its Hyperbola-3 rocket will be postponed
The tweet touts tests of their strongback, and only mentions the delay as an aside. Jay says the company is now saying it will slip to 2027.

SpaceX to offer at no cost to all satellite operators the data from its Stargaze system used by Starlink satellites to determine positions precisely
It is doing this to help avoid collisions. Others should do the same, though no one knows what the large Chinese satellite constellation operators will do.

14 comments

Rumors: Musk is considering merging SpaceX with xAI and Tesla

January 30, 2026 1:56 pm Robert Zimmerman

According to a bunch of unconfirmed stories today from different news outlets, Elon Musk is considering merging SpaceX with xAI and Tesla as part of the initial public offering (IPO) of SpaceX that the company is contemplating for sometime this summer.

Reuters reports that Musk wants to merge xAI — his very valuable AI company that has already merged with the company that used to be called Twitter — into SpaceX, his very valuable rocket company. And Bloomberg reports that SpaceX is also considering a merger with Tesla, citing people familiar with the matter.

The SpaceX-xAI tie-up could help Musk build data centers in space. “The combination would bring Musk’s rockets, Starlink satellites, the X social media platform and Grok AI chatbot under one roof,” the Reuters report says. Then again, Reuters also says it doesn’t know several key details about the theoretical deal, including “its ‌primary rationale.”

None of this is confirmed, but Musk has not denied it either. If so, this IPO would be the largest ever in the history of the stock markets, by many magnitudes. As noted at the link, xAI is raising gigantic amounts of capital. SpaceX in turn is expected to do even better in its IPO, as a single entity. Tesla is in far less demand, but this merger could be a way to reshape that company to give it a better future. It has already said it is beginning the transition from electronic cars to robots and other autonomous machines.

Whether such a merger will help SpaceX or Musk in his goal of building a Mars colony remains decidedly uncertain. A publicly traded stock company does not have the freedom of action that SpaceX now has as privately owned company.

16 comments

Russian defunct military satellite breaks up in graveyard orbit

January 30, 2026 1:42 pm Robert Zimmerman

A Russian defunct military geosynchronous satellite that was launched in 2014 and spent a decade spying on other geosynchronous satellites only to be moved to a graveyard orbit in 2025 when its fuel ran out apparently broke apart earlier today.

The Swiss company S2A systems, which specializes in tracking orbital objects, captured the moment the spacecraft began disintegrating. I have embedded that footage below, though it really is far less exciting than it sounds.

The debris poses a very small risk to other geosynchronous satellites, which orbit at about 22,000 miles elevation where there is too little atmosphere to decay orbits. The graveyard orbit is several hundred miles higher.
» Read more

11 comments

FAA moves forward on its environmental assessment of SpaceX’s proposal to launch Starship/Superheavy from Kennedy Space Center

January 30, 2026 12:01 pm Robert Zimmerman

Proposed Starship/Superheavy launchsites at
Kennedy (LC-39A) and Cape Canaveral (SLC-37)

While NASA has already determined that Starship/Superheavy launches from the Kennedy Space Center in Florida will have no significant impact on the environment, the FAA has not yet completed its own environmental impact statement.

Last week it released a preliminary summary [pdf] of its impact statement, revealing that it has reduced its final options to either approving SpaceX’s request to do as many as 44 launches per year, or to reject any changes — the “no action alternative” — which would block all Starship/Superheavy launches at Kennedy.

The overall tone of this summary suggests strongly that the FAA is almost certainly going to approve SpaceX’s request, allowing as many as 44 launches per year from launchpad LC-39A, as shown on the map to the right. As it notes in describing the “no action alternative”:

SpaceX would not launch Starship-Super Heavy from LC-39A. NASA would not develop, implement, or approve agreements with SpaceX associated with Starship-Super Heavy operations at LC-39A. The No Action Alternative would not meet the purpose and need. [emphasis mine]

In other words, rejecting SpaceX’s request would not fulfill the FAA’s obligation to serve the public. It would also not fulfill the FAA’s obligation to serve a fellow government agency, NASA, which has already approved this SpaceX request in a 2019 environmental assessment.

It appears a final decision by the FAA is imminent. A nice summary of this FAA document can be found here, which notes that if approved, it will give SpaceX license approval to launch Starship/Superheavy as much as 146 times per year, from its launchpads at Boca Chica, Kennedy, and Cape Canaveral. Note too that this FAA assessment is independent of the Air Force’s environment assessment, which has already approved 76 launches per year at the SLC-37 launchpad.

6 comments

On Coast-to-Coast tonight

January 30, 2026 10:44 am Robert Zimmerman

For those of my readers who might want to try to call in to improve the conversation, I will be on Coast-to-Coast with George Noory tonight for two hours starting at 10 pm (Pacific). The first hour will be devoted to me talking about space news, with Artemis-2 the main topic. The second hour will be for listener questions.

11 comments

Orbex failure occurred partly because UK government withheld promised funding

January 30, 2026 10:34 am Robert Zimmerman

Prime rocket prototype on launchpad
The prototype of Orbex’s never-launched Prime rocket,
on the launchpad in 2022

It appears the government of the United Kingdom contributed to the bankruptcy and sale of the British rocket startup Orbex in more than one way.

Orbex had hoped to do its first launch from the proposed Sutherland spaceport on the north coast of Scotland in 2022, but was blocked for four years because of red tape. First, the UK’s Civil Aviation Authority would not issue the spaceport and launch licenses. Second, local opposition delayed approvals as well. Those delays ate into the company’s resources, until it became entirely dependent on grants from the UK government (some through the European Space Agency) to keep it afloat.

Orbex’s problems were further compounded when it became clear in 2024 that the Sutherland spaceport would never get clearance. Orbex then switched to the Saxavord spaceport in the Shetland Islands, but this forced more delays because the company had no facilities there. It had already spent a fortune building everything for Sutherland.

A new report today says that it was finally forced to shut down and sell its assets to the French startup The Exploration Company because the UK government had withheld some of that promised funding.

News of the potential sale came just a month after a European Space Agency document confirmed that €112 million of €144 million UK government funding, earmarked for the European Launcher Challenge (ELC) scheme, was still “to be distributed”.

As a result, Orbex received just €34.9 million from the scheme – one-fifth of the €169 million awarded to each of its rivals by European governments.

That shortfall equates to about $160 million, a substantial amount of cash. While it is perfectly reasonable for the UK government to withheld these funds if it thinks the money would be badly spent, none of this government funding would not have been necessary at all if the UK government had simply issued the launch permits in a timely manner, allowing Orbex to launch and earn revenue.

As I noted early, congratulations to the United Kingdom, the place where rocket companies go to die! This is now the second such company killed by UK red tape and government incompetence, the first being Virgin Orbit.

7 comments

Russian official says Soyuz launchpad repair likely delayed

January 30, 2026 9:48 am Robert Zimmerman

According to the Russian official in charge of ground infrastructure at Roscosmos, the repair of Russia’s only Soyuz launchpad for launching Progress and Soyuz capsules to ISS might not be completed by late March, as Roscosmos has previously promised.

It appears the winter weather at Baikonur is causing issues. In addition:

Barmin explained that the new service platform had to be assembled from components manufactured at different times and sometimes mismatching each other, requiring on-site modifications. For example, the core of the spare platform was manufactured in 1977 in accordance with a different set of blueprints for a planned-but-never-implemented refurbishment of another Soyuz pad, Barmin said. When it was shipped from an arsenal in the city of Tambov to Baikonur, the set of hardware was incomplete, requiring it to be complemented with parts from other sources and with newly manufactured elements.

It also appears the Russian government is going to make scapegoats of the workers who handled the launch platform during the November 2025 launch. It has placed them under criminal investigation. The managers, whom according to one report demanded the launch take place even though these workers could not get the platform properly fastened in place, appear to have been cleared of wrong-doing.

Until this pad is repaired, Russia has no way to launch any manned missions. Nor can it send cargo to ISS.

The decision to scapegoat the workers will further hinder work, as it will certainly damage morale. Such an approach also helps explain why there has been several cases of sabotage of Soyuz and Progress capsules while they are being prepped for launch.

5 comments

NASA delays Artemis-2 wet dress rehearsal countdown due to weather

January 30, 2026 9:30 am Robert Zimmerman

NASA today announced it is delaying until February 2, 2026 the wet dress rehearsal countdown of its Artemis-2 mission due to weather concerns.

NASA is targeting Monday, Feb. 2, as the tanking day for the upcoming Artemis II wet dress rehearsal at the agency’s Kennedy Space Center in Florida, as a result of weather. With this change, the first potential opportunity to launch is no earlier than Sunday, Feb. 8.

Over the past several days, engineers have been closely monitoring conditions as cold weather and winds move through Florida. Managers have assessed hardware capabilities against the projected forecast given the rare arctic outbreak affecting the state and decided to change the timeline. Teams and preparations at the launch pad remain ready for the wet dress rehearsal. However, adjusting the timeline for the test will position NASA for success during the rehearsal, as the expected weather this weekend would violate launch conditions.

I had previously said this dress rehearsal countdown would include the astronauts inside Orion. This was incorrect. The astronauts are in quarantine in preparation for the actual mission. Orion will be unmanned during the rehearsal countdown.

6 comments

Two American launches this evening

January 30, 2026 12:28 am Robert Zimmerman

Two American companies, Rocket Lab and SpaceX, successfully completed launches during the evening of January 29-30.

First, Rocket Lab today (January 30th in New Zealand) placed a South Korean test smallsat, its Electron rocket lifting off from one of its two launchpads in New Zealand. The satellite is the first of a planned mass-produced constellation to provide precise observations of the Korean peninsula.

Next, SpaceX placed another 29 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Cape Canaveral in the early morning hours. The first stage completed fifth flight, landing on a drone ship in the Atlantic.

The 2026 launch race:

13 SpaceX
5 China
2 Rocket Lab

One comment

Varda capsule successfully returns to Earth after nine weeks in orbit

January 29, 2026 9:36 pm Robert Zimmerman

Varda's W-5 capsule after landing today
Varda’s W-5 capsule after landing today

The orbiting capsule startup Varda today successfully returned to Earth its W-5 capsule after nine weeks in orbit, landing in Australia’s Koonibba Test Range, operated by the commercial spaceport startup Southern Launch.

W-5 launched in November 2025, Varda’s fourth launch last year, and spent 9 weeks in orbit. The mission was funded through the Prometheus program, a partnership between the Air Force Research Laboratory (AFRL) and commercial space entities.

…The W-5 mission is the first reentry of Varda’s in-house developed satellite bus, designed specifically to meet the rigorous demands of both long-duration orbital pharmaceutical processing and high-velocity reentry. The W-5 flight was also equipped with an in-house manufactured heatshield, made in Varda’s El Segundo headquarters from C-PICA (Conformal Phenolic Impregnated Carbon Ablator).

…The W-5 capsule carried a specialized payload for the U.S. Navy, focusing on data collection during reentry. Varda’s ability to provide fixed-cost, routine reentry offers the Department of War a unique, cost-effective platform for iterative testing of hypersonic flight characteristics. The Varda capsules endure extreme environments when they reenter at speeds exceeding Mach 25.

While previous capsules had used their time in orbit testing the manufacture of products like pharmaceuticals, this mission was used by the Air Force to test hypersonic missile sensors and equipment during the high-speed re-entry.

Varda’s earlier capsules had used a satellite bus (that provides power and control) built by Rocket Lab. With this capsule it is now capable of building its entire capsule. It is also ramping up its launch pace, with plans to launch as many as 20 capsules through ’28.

3 comments

Doris Day – Shaking the Blues Away

January 29, 2026 6:01 pm Robert Zimmerman

An evening pause: From the 1955 film Love Me or Leave Me.

Hat tip Judd Clark.

4 comments

January 29, 2026 Quick space links

January 29, 2026 2:59 pm Robert Zimmerman

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.

Blue Origin successfully completes soft capture test of docking system to be used on its manned lunar lander and Orbital Reef space station
As far as I know, this could be the first real hardware Blue Origin has built for Orbital Reef.

Declassifying JUMPSEAT, a surveillance satellite program from the ’70s and ’80s
The satellites used a high elliptical orbit that favored high latitude observations, excellent for monitoring Soviet military operations.

I bought “Remove Before Flight” tags on eBay in 2010—it turns out they’re from Challenger’s final flight
Very interesting story about collecting miscellaneous space memorabilia that turns out to come from a very significant space mission.

11 comments

Pluto’s mountains of ice surrounded by a sea of frozen nitrogen

January 29, 2026 2:18 pm Robert Zimmerman

Click for original image.

Cool image time! Though we only have a limited archive of high resolution pictures of Pluto that were taken when New Horizons did its close fly-by of the planet in July 2015, it is worthwhile sometimes to take a second look at some of those images. The picture to the right, cropped and annotated to post here, was taken during that July 14, 2015 fly-by, and shows a mountainous region dubbed Al-Idrisi Montes on the shore of a white frozen ocean. The red dotted line indicates a large trench that separates the Al-Idrisi mountains from the mountainous region to the west.

Sounds similar to an arctic shoreline here on Earth, doesn’t it? Not in the least. Those mountains, ranging from 600 to 9,000 feet high, are made of frozen ice, which on Pluto are as hard as granite due to the endless cold. And the white frozen ocean is frozen nitrogen, broken into polygon shaped blocks. Even stranger: those ice mountains might even be floating in that nitrogen sea! A paper from 2019 [pdf] looked at the New Horizons data and concluded as follows:

Evidence suggests that the Al-Idrisi mountains may have been uplifted by the formation of
the western trench feature. Solid state convection appears to be our best supposition as to how the Al-Idrisi Montes reached their heights.

In other words, as that large trench/depression formed, convection (the bubbles you see when you simmer tomato sauce) pushed these mountains of ice upward to float above the “sea level” of that nitrogen sea.

At least, that’s one hypothesis. The scientists who wrote this paper admit their “our hypothesis still remains in need of study and this trench-mountain system warrants serious further research.” In other words, we simply don’t know enough to have a definitive understanding of the geology of this extremely alien planet.

3 comments

SpaceX launches 25 more Starlink satellites

January 29, 2026 10:59 am Robert Zimmerman

The beat goes on: SpaceX today successfully launched another 25 Starlink satellites, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage completed its 19th flight, landing on a drone ship in the Pacific.

It also appears on this launch SpaceX placed its 11,000th Starlink satellite into orbit. The actual number of satellites in orbit presently is much less than this, as SpaceX retires older Starlink satellites on a regularly basis. Nonetheless, the overall number is impressive, in that it was accomplished in less than seven years.

The 2026 launch race:

12 SpaceX
5 China
1 Rocket Lab

Though it is still early in 2026, note that SpaceX has now launched twice as much as the rest of the world, combined.

Artemis-2 proves NASA learned nothing from the Challenger and Columbia failures

January 29, 2026 9:56 am Robert Zimmerman

NASA: an agency still avoiding reality
NASA: an agency that still avoids reality

Our bankrupt new media continues to fail us. NASA is about to send four astronauts on a ten-day mission around the Moon in a capsule with questionable engineering, and that media continues to ignore the problem. Mainstream news outlets continue to describe the mission in glowing terms, consistently ignoring that questionable engineering. In some cases the stories even make believe NASA has fixed the problem, when it has not.

The most ridiculous example is an article yesterday from an Orlando outlet, Spectrum New 13: “How the lessons learned from the Challenger disaster apply to Artemis rockets”. It focuses entirely on the O-ring problem that destroyed Challenger, noting repeatedly that NASA has fixed this issue in its SLS rocket.

Of course it has. That’s the last war, long over. Engineers fixed this issue almost four decades ago. The article however dismisses entirely the new engineering concern of today, Orion’s heat shield, which did not work as expected during its own test flight in space in 2022. It covers this issue with this single two-sentence paragraph:

However, during re-entry, it broke up into chunks instead of burning away. This issue pushed back the Artemis II and III missions, but NASA has stated it has resolved the problem.

NASA however has not resolved the problem. It is using the same heat shield now on this manned mission, and really has no reason to assume it will work any better, even if the agency has changed the re-entry flight path in an effort to mitigate the heat shield’s questionable design.

You see, NASA with Artemis-2 is doing the exact same thing it did prior to both the Challenger and Columbia accidents. » Read more

40 comments

January 28, 2026 Zimmerman/Batchelor podcast

January 28, 2026 8:37 pm Robert Zimmerman

Embedded below the fold.

To listen to all of John Batchelor’s podcasts, go here.
» Read more

3 comments

The Warning – Dust To Dust/Dull Knives

January 28, 2026 6:01 pm Robert Zimmerman

An evening pause: In 2017 I posted an evening pause of this band, when Daniela (on guitar) was 14 years old, Paulina (on drums) was 12 years old, and Alejandra (on bass guitar) was 9 yrs old. Today’s evening pause is from their 2023 tour in Mexico (where they are from), celebrating the band’s tenth anniversary. To put it mildly, they are a bit older.

Hat tip Matt Falk, who adds, “They are all adults now who’ve become one of the best live rock bands playing today, while still maintaining complete control of their career (a feat in itself).”

4 comments

Saturn’s rings with two of its moons perfectly aligned

January 28, 2026 2:30 pm Robert Zimmerman

Click for original image.

Cool image time! Rather than posting another Mars orbital image, I decided today to delve into the archive of pictures taken by the Cassini orbiter during the thirteen years it circled Saturn, from 2004 until 2017. The picture to the right, cropped to post here, was released on December 14, 2015, and is just one example of the many breath-taking photographs that the Cassini science team took during that mission. From the caption:

Like a cosmic bull’s-eye, Enceladus and Tethys line up almost perfectly for Cassini’s cameras. Since the two moons are not only aligned, but also at relatively similar distances from Cassini, the apparent sizes in this image are a good approximation of the relative sizes of Enceladus (313 miles across) and Tethys (660 miles across).

This view looks toward the un-illuminated side of the rings from 0.34 degrees below the ring plane. The image was taken in red light with the Cassini spacecraft narrow-angle camera on Sept. 24, 2015.

The image was obtained at a distance of approximately 1.3 million miles from Enceladus. Image scale on Enceladus is 7 miles per pixel. Tethys was at a distance of 1.6 million miles with a pixel scale of 10 miles per pixel.

Enceladus is in the foreground, and is the planet that has what scientists have labeled tiger stripe fractures that vent water and other material, including carbon molecules.

6 comments

« 1 2 3 4 … 1,149 »

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.