Author: Robert Zimmerman

October 8, 2025 Quick space links

3:19 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.

  • Hams confirm Juno is still operating
    It apparently transmitted a signal back to Earth. This however has no bearing on whether the mission will survive the budget process. Right now I remain very skeptical it will.
  • A detailed long article describing China’s government space program
    A very nice summary, though as Jay notes, “if a little alarmist.” It is part of the swamp’s tag team effort to convince Americans we need to give NASA and the Pentagon lots of money or else China will destroy us. Meanwhile, all we really need to do is clear the way for private competition and American ingenuity and China will be left in the dust.
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Martian winds are faster than expected

2:46 pm

According to an analysis of pairs of 300 hundred orbital images taken seconds apart, scientist have found that Martian winds can reach speeds of 100 miles per hour (160 kilometers per hours), much faster than previously expected.

The results show that the dust devils and the winds surrounding them on Mars can reach speeds of up to 44 m/s, i.e. around 160 km/h, across the entire planet, which is much faster than previously assumed (previous measurements on the surface had shown that winds mostly remain below 50 km/h and – in rare cases – can reach a maximum of 100 km/h). The high wind speed in turn influences the dust cycle on the Red Planet: “These strong, straight-line winds are very likely to bring a considerable amount of dust into the Martian atmosphere – much more than previously assumed,” says Bickel. He continues: “Our data show where and when the winds on Mars seem to be strong enough to lift dust from the surface. This is the first time that such findings are available on a global scale for a period of around two decades.”

You can read the paper here. The study also found dust devils favor the spring and summer in both the north and south hemispheres, and tended to be concentrated in the mid-latitudes.

What is most interesting about this data, which because it is somewhat sparse has a lot of uncertainties, is that it suggests the candidate landing zone for SpaceX’s Starship is a region with one of the most intense dust devil seasons every spring and summer. This is not really a threat to settlement, because the atmosphere is so thin even these high winds would hardly be felt, but it does indicate an environmental condition that must be considered for any future settlement there.

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Fresh slope streak on Mars

1:09 pm

Fresh slope streak on Mars
For original images go here and here.

Cool image time! One of the geological mysteries on Mars seen no where on Earth is something scientists have dubbed “slope streaks.” Though they at first glance appear to be avalanches, they do nothing to change the topography, have no debris pile at their base, and sometimes even travel up and over rises on their way downhill. They can also appear randomly throughout the year, can be bright or dark, and fade with time.

No theory as to their cause has yet been accepted, though recent research suggests they are dry events, dust avalanches triggered by dust devils, wind, or the accumulation of dust.

To better understand this geology, scientists repeatedly monitor known slope streak locations looking for changes. The two images to the right are an example, downloaded from the high resolution camera on Mars Reconnaissance Orbiter (MRO) on July 2, 2024 and September 1, 2025. In the fourteen months that passed between the first and second images, two distinct and large slope streaks occurred next to each other, near the bottom of the picture. All the other streaks merely faded.
» Read more

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Canadian rocket startup Nordspace obtains expanded ground station contract

9:28 am

Proposed Canadian spaceports
Proposed Canadian spaceports

The Canadian rocket startup Nordspace has signed an agreement with the ground station company C-Core to establish more tracking and communication facilities in conjunction with Nordspace’s launch plans at its Atlantic spaceport in Newfoundland.

NordSpace and C-CORE have signed a Memorandum of Understanding (MOU) that will see the companies work together in developing new ground stations across Canada with initial locations planned for the Atlantic Spaceport Complex (ASX) in St. Lawrence, Newfoundland and Labrador, and Inuvik, Northwest Territories.

With C-CORE being based in St. John’s, Newfoundland, and already established in providing ground station services, it seems like a natural collaboration that could benefit both companies. For NordSpace, which owns and is developing the Atlantic Spaceport Complex, this collaboration provides the potential for another type of revenue source as the company tries to diversify.

Nordspace has not yet launched, though its first suborbital test launch several weeks ago was scrubbed twice due to ground equipment fuel leaks. It has not yet announced another date for that suborbital test, but plans a static fire test in October of the engine it is building for its orbital Tundra rocket.

This company is only three years old, and appears to have leap-frogged past Canada’s other spaceport operation in Nova Scotia, which has been trying to get off the ground for almost a decade.

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Stoke Space said to be raising as much as $500 million in private investment capital

9:17 am

Stoke's Nova rocket
Stoke’s Nova rocket, designed to be
completely reusable.

UPDATE: Stoke Space confirms the story, announcing today that it has raised $510 million in new capital.

According to anonymous sources, the rocket startup Stoke Space is in the process of raising as much as $500 million in private investment capital, with new $2 billion valuation for the company.

Stoke Space, one of the Seattle area’s up-and-coming space startups, is said to be raising hundreds of millions of dollars in a funding round that it hasn’t yet publicly acknowledged. A report about the round, based on two unidentified sources, was published today by The Information.

The Information quoted its sources as saying that the funding round could total as much as $500 million, and would value Stoke at nearly $2 billion. That figure would be roughly twice as much as the $944 million valuation that was cited by Pitchbook as of January. The round’s lead investor is said to be Thomas Tull’s United States Innovative Technology Fund.

Earlier this year Stoke raised $260 million, bringing its available capital to almost a half billion. If this story is confirmed, it means the company will have almost a billion in available cash on hand.

The design of Stoke’s Nova rocket is unique in that both the lower and upper stages will be reusable. The first stage will land vertically, like SpaceX’s Falcon 9. The upper stage meanwhile uses a radical nozzle design, a ring of tiny nozzles around the perimeter of a heat shield, to protect it during re-entry.

The company has said it plans the first launch in 2026, but has not been more specific as to when. If successful, this rocket will certainly become a major player, as it will be able to offer even lower prices than SpaceX because none of the rocket will be expendable.

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First image from Mars of interstellar Comet 3I/Atlas

9:02 am

Comet 3I/Atlas as seen from Mars
Click for original image.

Using the Europe’s Trace Gas Orbiter (TGO) presently orbiting Mars, scientists have successfully obtained the first images from Mars of interstellar Comet 3I/Atlas using its Colour and Stereo Surface Imaging System (CaSSIS).

They have compiled a short movie of those images, with one of those pictures to the right, cropped to post here. As expected, the observation was difficult and somewhat limited in the data it could obtain.

CaSSIS could not distinguish the nucleus from the coma, because 3I/ATLAS was too far away. Imaging this kilometre-wide nucleus would have been as impossible as seeing a mobile phone on the Moon from Earth.

But the coma, measuring a few thousand kilometres across, is clearly visible. The coma is created as 3I/ATLAS approaches the Sun. The Sun’s heat and radiation is bringing the comet to life, causing it to release gas and dust, which collects as this halo surrounding the nucleus. The full size of the coma could not be measured by CaSSIS because the brightness of the dust decreases quickly with distance from the nucleus. This means that the coma fades into the noise in the image.

Typically, material from the coma is swept into a long tail, which can grow up to millions of kilometres long as the comet moves closer to the Sun. The tail is much dimmer than the coma. We can’t see the tail in the CaSSIS images, but it may become more visible in future observations as the comet continues to heat up and release more ice.

The science team for Europe’s Mars Express orbiter also attempted to get data of the comet, but have not yet been able to detect it. Both orbiters also tried to get spectroscopy, but no data was obtained because the comet is presently too faint and distant for these instruments.

More observations are planned, not only from these orbiters but also from Europe’s Juice spacecraft on its way to Jupiter but presently in the inner solar system somewhat near the Sun. It will make its observations in November, but won’t be able to transmit the data back until February, after it has gotten more distant from the Sun.

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SpaceX launches 28 Starlink satellites, reuses 1st stage for 29th time

8:31 am

SpaceX last night successfully launched another 28 Starlink satellites, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage, B1071, completed its 29th flight, landing on a drone ship in the Pacific. The present rankings for the most reflights of a rocket:

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

Sources here and here.

Note also that SpaceX was able to refly this stage only 24 days after its previous flight. Even after 28 flights, the booster appears so robust the company can get it back in the air only weeks later.

The leaders in the 2025 launch race:

129 SpaceX
58 China
13 Russia
12 Rocket Lab

SpaceX now leads the rest of the world in successful launches, 129 to 98. SpaceX has another launch scheduled for this evening, placing another set of Amazon’s Kuiper satellites into orbit.

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Japanese satellite company extends its launch contract with Rocket Lab

8:01 am

The Japanese satellite company Q-shu Pioneers of Space, Inc. (iQPS) has purchased three more launches from Rocket Lab, for a total of seven planned.

The multi-launch contract includes three dedicated Electron missions that will launch no earlier than 2026 from Rocket Lab Launch Complex 1 in New Zealand. With four dedicated missions already booked by iQPS on Electron, these three additional missions bring the total number of upcoming launches for iQPS to seven.

Each dedicated launch will deploy a single synthetic aperture radar (SAR) satellite from a Rocket Lab Motorized Lightband separation system – demonstrating Rocket Lab’s vertical integration across launch and space systems that improves reliability and streamlines the launch process for its customers.

Rocket Lab has already completed four successful launches for iOPS, so with this deal means that it will complete eleven launches total for the satellite company. Essentially iQPS has made Rocket Lab its prime launch provider.

This is also the second major launch contract for Rocket Lab in the past week. On September 30, 2025 Synspective purchased its second multi-launch contract with the company, buying ten more launches. Its first contract was for eleven launches, with six already completed. Synspective hopes to have its entire radar constellation of 30 satellites in orbit by the late 2020s.

Both contracts tell us that Rocket Lab’s Electron rocket is going to have a very busy launch schedule for the next few years, even as the company initiates its larger Neutron rocket.

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October 7, 2025 Quick space links

3:02 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.

  • SpaceX registers the trademark “Starfall” at the U.S. Patent Office
    No real information beyond that. The tweet adds this tantalizing tidbit, stating that this action is “through the island nation of Tonga covering: launch, on-orbit, and reentry services, spaceflight travel, in-space manufacturing services, custom manufacturing & processing of pharmaceuticals.” Tonga is east of Australia in the Pacific. Is SpaceX planning Starship landings there?
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Is the fate of the independent live streams in Boca Chica uncertain?

12:52 pm

My headline paraphrases this interesting, very detailed, and largely accurate article today from Texas Monthly. It outlines how the newly formed town of Starbase there has the power to block the many independent lives streams and tourist operations that have sprung up since SpaceX opened its facility in Boca Chica.

This proxy government also has the power to create zoning rules and enforce them. In July the city adopted a plan that leaves those with the closest views of the launchpads in violation of new zoning designations. The mainstay launch-day ticket sellers here—Rocket Ranch and a few others—operate in what’s now officially a residential area, near newly built homes for SpaceX executives. The same violation applies to the spots where the streamers have mounted their video cameras.

These cottage industries aren’t doomed. Texas law has grandfathering provisions that allow existing businesses to remain open after zoning changes. But Starbase city attorney Andy Messer raised eyebrows during a recent city commission meeting by saying that the grandfathering would be considered on a “case-by-case basis.” Hearing this, some property owners expressed hesitation to approach the city to ask if their status was in question. “I don’t want to poke the bear,” as one put it.

Will SpaceX force the town of Starbase to shut these independent operations down? The article describes the possibilities in great detail. The very nature of SpaceX and its founder, Elon Musk, suggests it won’t happen. The company thrives on openness and straight talk. Musk himself is a proven supporter of free speech and competition. It would be shocking if his company suddenly took a different position. Moreover, SpaceX, Starbase, or its residents (almost all of which are SpaceX employees) generally benefit from the good publicity of these independent operations, publicity that the company’s own employees enjoy.

Yet, Starbase is a company town, and the long history of such places is that with time, the company takes over and rules everything, allowing nothing that it does not control.

Stay tuned. Above all things won’t be dull in Boca Chica.

Hat tip Robert Pratt of Pratt on Texas.

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Martian boxwork on the flanks of Mount Sharp

9:55 am

The boxwork on Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on October 5, 2025 by the left navigation camera on the Mars rover Curiosity.

The picture looks north and downhill from the lower flanks of Mount Sharp, inside Gale Crater. In the far distance on the horizon can be seen the crater’s northern rim, about 20 to 30 miles away. As it is now moving into the dusty season on Mars, the haze has increased from only a month ago, making it hard to see many distant details.

In the foreground can be seen clearly the light-colored ridges of the boxwork that the rover has been traversing for the past three months, with one rover track visible on the nearest ridge. Unlike the very rocky and boulder-strewn terrain the rover has seen in most of its travels on Mount Sharp, this boxwork seems smoother.
» Read more

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