Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

China begins hurried preparations to launch rescue Shenzhou capsule to Tiangong-3

6:01 am

The Tiangong-3 station, as presently configured
The Tiangong-3 station, as presently configured

According to China’s state run press, it has begun emergency procedures to quickly launch the Shenzhou-22 capsule — originally scheduled to carry the next crew to its Tiangong-3 station in April 2026 — in order to provide the present station crew a lifeboat and a return capsule.

The China Manned Space Agency has started preparations for the launch of an unmanned spacecraft to carry a full cargo load, including provisions for astronauts and equipment for the Tiangong space station, according to a senior engineer. Zhou Yaqiang, who works with the agency’s general technical bureau, told China Central Television on Saturday that all systems involved in the upcoming Shenzhou-22 cargo mission “are busy getting ready for it, testing the rocket and the spaceship and preparing the payloads”.

The Shenzhou-22 spacecraft will be launched in due course to dock with the Tiangong space station, the agency said.

The report provided no details on when this launch would occur, though another Chinese report said getting the rocket (a Long March 2F) and capsule ready in the next 10 to 20 days would be “difficult.”

At the moment, the three astronauts on Tiangong-3 have no lifeboat. Should anything go wrong at the station before that launch they will have no way to get back to Earth, unless they use the damaged Shenzhou-21 capsule still docked to the station. That capsule has cracks in a window, caused by what the Chinese think was an impact from “space debris.” The Chinese have already determined it is not safe for human travel. Thus, using it in an emergency would be a desperate act.

Since the first space station, Salyut-1, was launched and occupied in 1971, this is the first time that a crew has been in space with absolutely no way to get home. The press last year repeatedly claimed the Starliner crew was “stranded” on ISS, but that wasn’t so. They could have always come home on their Starliner craft, as was proven when it returned unmanned with no problems. NASA had simply made the decision to be cautious and wait for the launch of next Dragon to bring them home instead.

14 comments

FAA lifts airline and rocket launch restrictions

11:34 pm

The Federal Aviation Administration (FAA) earlier today announced it is lifting the restrictions on airline traffic as well as rocket launch limitations imposed due to the government shutdown.

The change will go into effect 6 am (local time) on November 17, 2025.

The restrictions had limited flights out of 40 major airports across the country. Normal flight schedules should resume tomorrow. For rockets, this means launches can once again take place at any time of the day. The restrictions had placed a curfew on any launches from 6 am to 10 pm local time.

The press release included this intriguing tidbit:

The FAA is aware of reports of non-compliance by carriers over the course of the emergency order. The agency is reviewing and assessing enforcement options.

If the FAA does anything to penalize any airline or rocket company it would be a very typical example of government pettiness. But then, I have learned never to expect anything better from bureaucracies.

0 comments

SpaceX launches NASA ocean radar satellite

10:56 pm

SpaceX tonight successfully launched Sentinal-6B, a NASA radar satellite designed to measure the global sea level, its Falcon 9 rocket lifting off from Vandenberg Space Force Base.

The first stage completed its 3rd flight, landing back at Vandenberg.

The leaders in the 2025 launch race:

150 SpaceX (a new record)
70 China
14 Rocket Lab
13 Russia

SpaceX now leads the rest of the world in successful launches, 150 to 117.

Note that until SpaceX began to up its launch rate significantly in 2022, the entire global rocket industry — run entirely by governments — never completed more than 135 successful launches in a single year, and usually failed to make 100 launches. SpaceX is now proving that those global numbers over more than a half century were indicative of the failure of those governments. Those governments controlled everything, and so they prevented innovation, competition, and new ideas.

The transition to capitalism and freedom since 2010 has finally begun to open up space for everyone.

14 comments

Europe’s Trace Gas Orbiter circling Mars gets images of interstellar Comet 3I/Atlas

4:47 pm

Interstellar Comet 3I/Atlas
Click for movie.

Using Europe’s Trace Gas Orbiter (TGO) that is in orbit around Mars, engineers have obtained images of the interstellar Comet 3I/Atlas.

The image to the right is a screen capture of the last image in a movie they created from all the pictures. I have added the arrow to indicate the comet, which underlines the fact that these images really don’t tell us that much about the comet itself. It is hardly more than a few pixels across, with no real detail resolved. However, the data has still been found useful.

Until September, figuring out the location and trajectory of 3I/ATLAS relied on Earth-based telescopes. Then between 1 and 7 October, ESA’s ExoMars TGO turned its eyes towards the interstellar comet from its orbit around Mars. The comet passed relatively close to Mars, approaching to about 29 million km during its closest phase on 3 October.

The Mars probe got about ten times closer to 3I/ATLAS than telescopes on Earth and it observed the comet from a new viewing angle. The triangulation of its data with data from Earth helped to make the comet’s predicted path much more accurate.

While the scientists initially anticipated a modest improvement, the result was an impressive ten-fold leap in accuracy, reducing the uncertainty of the object’s location.

All the data continues to confirm that 3I/Atlas is nothing more than comet, though like all comets unique in its own way. This refined location data will also improve the on-going observations of Europe’s Jupiter probe Juice, presently on its way to Jupiter and in the best position to see 3I/Atlas.

5 comments

Two more SpaceX launches

1:15 pm

SpaceX yesterday completed two launches, placing a total of 58 Starlink satellites into orbit.

First, a Falcon 9 lifted off from the Kennedy Space Center in Florida, carrying 29 Starlink satellites. The first stage completed its 8th flight, landing on a drone ship in the Atlantic.

Four hours later, a second Falcon 9 lifted off from Cape Canaveral, carrying another 29 Starlink satellites. Its first stage completed its 24th flight, also landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

149 SpaceX
70 China
14 Rocket Lab
13 Russia

SpaceX now leads the rest of the world in successful launches, 149 to 117.

7 comments

November 11, 2025 Zimmerman/Space Show appearance

3:55 pm

David Livingston has now uploaded the audio of my appearance on the Space Show earlier this week on November 11, 2025.

You can download the audio of the program here.

To watch the zoom broadcast, go here.

The most important point I made during this show was at the beginning, as described by David Livingston’s summary of the show:

During the program Bob made some predictions about the future of space exploration. Zimmerman claimed that SpaceX, rather than NASA, is currently the most effective American space program. He predicted that in two years, everyone would recognize SpaceX’s dominance. Zimmerman also suggested that NASA’s role should become less significant, with its focus shifting to supporting private space endeavors rather than leading space exploration efforts.

I was actually more blunt. I said that SpaceX is the American space program right now, and that SpaceX doesn’t need NASA or the U.S. government in any way to carry it out, as it is entirely funded from Starlink revenues. I also predicted that NASA and its Artemis program is now irrelevant, though no one yet realizes it.

I added that this is going to be one of my many predictions that everyone will claim they made, two years hence. I’m making it now. I am quite willing to bet I will be right.

Everyone should take a listen. You will find the discussion afterward most revealing.

8 comments

The orbital propulsion module for India’s Chandrayaan-3 lunar lander drifts back into lunar orbit

3:48 pm

When India’s Chandrayaan-3 spacecraft arrived in lunar orbit in August 2023, it separated into three units, the lander, a lunar orbiter, and a propulsion unit used to get everything to the Moon.

While the Vikram lander successfully touched down several hundred miles from the Moon’s south pole and the Chandrayaan-3 orbiter continues to make observations of the Moon, in October 2023 engineers had the propulsion module do a burn that sent it out of lunar orbit and into an Earth orbit that was close to one of the Lagrange points where the gravity of the Earth and Moon are balanced.

Now, three years later, that module has drifted back into lunar orbit, where it has since done two close fly-bys of the surface.

This intricate orbital dance culminated when the module once again entered the Moon’s SOI [sphere of influence] on November 4, 2025, an event marking the transition where lunar gravity dominates its motion.

The first recorded lunar flyby occurred on November 6, 2025, at a distance of 3,740 km from the lunar surface, though it was outside the Indian Deep Space Network’s (IDSN) visibility range. A second, closely monitored flyby took place on November 11, 2025, bringing the module within 4,537 km of the Moon and well within observation capabilities.

These events noticeably altered the satellite’s orbital parameters, expanding its orbit size from 100,000 x 300,000 km to a massive 409,000 x 727,000 km and shifting its inclination from 34° to 22°.

It is not clear what happens next. Having this module in lunar orbit could be an issue for present and later orbiters, as no orbit around the Moon can ever be stable. At some point India’s space agency ISRO needs to properly dispose of this unit, either by sending into the Moon or out of the Moon-Earth system entirely. I am of course assuming it has the fuel to do so.

2 comments

Bezos releases new video of the New Glenn first stage landing yesterday

3:35 pm

Jeff Bezos, founder of Blue Origin, today released on X new footage showing from a distance the full landing sequence of New Glenn’s first stage on a barge in the Atlantic.

I have embedded it below. It is quite spectacular, and suggests the Blue Origin team can match SpaceX’s team in controlling a landing spacecraft. The stage comes down several hundred feet to the side of the barge, hovers, and then slides sideways to touch down exactly on target. As Bezos notes:

We nominally target a few hundred feet away from Jacklyn to avoid a severe impact if engines fail to start or start slowly. We’ll incrementally reduce that conservatism over time.

This is not unlike the landing maneuver performed by Starship prior to capture by the tower chopsticks. If Blue Origin can do it also, it means it has capabilities it has been hiding for the past decade due to its slow and timid testing/launching pace.
» Read more

11 comments

Comet C/2025 K1 — NOT interstellar 3I/Atlas — breaks up as it passes closest to the Sun

12:10 pm

The broken apart nucleus of Comet 3I/Atlas
Click for original image.

CORRECTION: I originally posted this story thinking the comet imaged was the interstellar Comet 3I/Atlas. It is not. It is a different one. I have changed to post below to correct my error.

——————
Sometime on November 11, 2025, the nucleus of interstellar C/2025 K1 broke into three pieces as it passed through its closest and hottest point to the Sun.

The image to the right, cropped and reduced to post here, comes from images of the break-up taken by the Virtual Telescope project, which gathers data from many small telescopes remotely.

From the first link, translated by Google from the Italian:

Its trajectory led it, in early October, to pass through a point of minimum distance from the Sun (perihelion) quite close to our star, about 0.33 astronomical units, just outside the orbit of Mercury. Because of this “short” distance from the Sun, it experienced high solar irradiation, which caused a significant increase in the temperature of the surface and internal layers of the nucleus.

These are precisely the conditions under which a “breakup” event is expected: depending on the internal properties of the nucleus—namely, its porosity, its state of cohesion, its composition, and the percentage of ice—it is possible that the increase in temperature could cause significant “outgassing,” a sudden and violent outflow of gaseous and dusty material, and the consequent fragmentation of the nucleus, sometimes into a few pieces of roughly similar size, sometimes into a cloud of fragments and debris that spread along the trajectory of the original comet.

…”From an initial quick analysis of the images, we can confirm that there are certainly two fairly similar pieces, whose brightness maxima are separated by approximately 2,000 km (distance projected on the star field); “Furthermore, we can intuit the presence of a third, smaller and fainter fragment to the left of the pair,” observes Mazzotta Epifani.

It will be interesting to see if the same thing happens to interstellar Comet 3I/Atlas as it makes its own pass close to the Sun.

7 comments

China’s Shenzhou-20 crew on Tiangong-3 returns on Shenzhou-21 capsule

11:27 am

The Tiangong-3 station, as presently configured
The Tiangong-3 station, as presently configured

After about a week of analysis, China today announced that the Shenzhou-20 capsule was too badly damaged to bring its crew back from its Tiangong-3 space station.

In making that announcement China finally revealed some details about the damage.

Tiny cracks have been found in the return capsule’s viewport window, which are most probably caused by external impact from space debris, according to the [China Manned Space Agency (CMSA).]

To get that crew home, which had already spent almost seven months in orbit, China had them board the Shenzhou-21 capsule that had only launched two weeks earlier on October 31, 2025 and use it to return to Earth today.

This leaves the present three astronauts on Tiangong-3 without any way to get back to Earth should something go wrong with the station.

China apparently had limited options. It doesn’t have enough docking ports on Tiangong-3 to dock three Shenzhou capsules to it, so one capsule had to undock and leave the station to make room for a replacement capsule.

Undocking Shenzhou-21 however is puzzling. Why didn’t China instead undock the damaged Shenzhou-20 capsule and de-orbit it? Had it done so, the six astronauts would have had only one lifeboat for three, but the docking port would have been opened for a new rescue capsule. There have been indications that China is preparing the next Shenzhou-22 capsule and a Long March 2F rocket for launch, though China has not provided any information about when that launch will occur.

With Shenzhou-21 gone, the three remaining Tiangong-3 astronauts are truly stranded in space, with no way home.

3 comments

Amazon renames its proposed internet constellation from Kuiper to Amazon LEO

9:59 am

Amazon today announced that it has renamed its proposed internet constellation from the initial internal code name “Kuiper” to “Amazon LEO, to give “a simple nod” to its location in low Earth orbit.

Our long-term mission remains the same, and we’re making good progress against it. We now operate one of the largest satellite production lines on the planet. We’ve invented some of the most advanced customer terminals ever built, including the first commercial phased array antenna to support gigabit speeds. And we now have more than 150 satellites in orbit [154 to be exact], and customers and partners like JetBlue, L3Harris, DIRECTV Latin America, Sky Brasil, and NBN Co., Australia’s National Broadband Network operator, already signing up to deploy the service.

The company’s FCC license requires it to have 1,600 satellites in orbit by July 2026. To even get close to this number the three launch companies that have Amazon launch contracts, ULA (46 launches total), Arianespace (18 launches), and Blue Origin (27 launches) have got to start launching regularly. ULA has completed three launches, and promises to do many in 2026. Arianespace says it will begin launches in 2026. Blue Origin has said nothing, but the successfully launch yesterday of New Glenn suggests it will also begin Amazon launches in 2026.

2 comments
1 … 74 75 76 77 78 … 2,411