Tag: spaceflight

China launches three satellites from ocean platform

1:53 pm

The Chinese pseudo-company Orienspace yesterday successfully placed three satellites into orbit, its solid-fueled Gravity-1 rocket lifting off from an ocean platform off the country’s northeast coast.

This was Orienspace’s second launch, both using its Gravity-1 rocket from the ocean. Of the three satellites, one was an Earth observation satellite, and the other two were part of the pseudo-company Geespace’s Geely constellation of satellites, though it is not clear if these are for its Internet-of-Things (IoT) constellation or for general communications. The IoT constellation already has 64 satellites in orbit out of a planned 240.

Another launch of China’s Long March 8A rocket was supposed to happen yesterday, but there is no indication in China’s state-run that it took place, nor any information about a rescheduled launch date. That state-run press also illustrated the pseudo nature of these Chinese companies by only mentioning Orienspace as an afterthought at the end of the article.

The leaders in the 2025 launch race:

129 SpaceX
59 China
13 Russia
12 Rocket Lab

SpaceX still leads the rest of the world in successful launches, 129 to 99. The company will try again this evening to launch its third mission for Amazon, placing a set of Kuiper satellites into orbit. Weather has scrubbed the past two attempts in the previous few days.

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New research confirms the steady decline of Martian ice with each glacial cycle

10:26 am

The obliquity cycles of Mars

Using orbital data from Mars Reconnaissance Orbiter (MRO) of glaciers inside mid-latitude craters, scientists have concluded that there was a steady decline in the growth of those glaciers with each new glacial cycle.

They focused on craters with indicative signs of glaciation, such as ridges, moraines (piles of debris left behind by glaciers), and brain terrain (a pitted, maze-like surface formed by ice-rich landforms). By comparing the shapes and orientations of these features with climate models, they found that ice consistently clustered in the colder, shadowed southwestern walls of craters. This trend was consistent across various glacial periods, ranging from approximately 640 million to 98 million years ago.

The results show that Mars didn’t just freeze once—it went through a series of ice ages driven by shifts in its axial tilt, also known as obliquity. Unlike Earth, Mars’ tilt can swing dramatically over millions of years, redistributing sunlight and triggering cycles of ice build-up and melting. These changes shaped where water ice could survive on the planet’s surface. Over time, however, each cycle stored less ice, pointing to a gradual planetary drying. [emphasis mine]

You can read the paper here [pdf]. This result is not new. Based on the orbital data scientists have theorized now for almost a decade that as Mars’ rotational tilt (its obliquity) swings from 11 to 60 degrees, it produces extreme climate cycles on the planet. Those swings are shown on the graph to the right, taken from this 1993 paper [pdf]. When the obliquity is low, the mid-latitudes are warm and the glaciers there shrink, with the snow falling at the poles. When obliquity is high, the poles are warmer and its ice sublimates away to fall as snow in the mid-latitudes, thus causing those glaciers to grow instead.

The orbital data has consistently shown that with each new cycle, the glaciers grew less, suggesting that less global water was available on the planet. This new study further confirms these conclusions.

One last point: Though the amount of water ice on Mars has declined, we mustn’t think the red planet now has none. The orbital data shows that there is a lot of near surface ice on Mars, covering the planet from 30 degrees latitude poleward. As I’ve noted numerous times, Mars is a desert like Antarctica.

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Orbital tug company Momentus gets two NASA contracts

9:54 am

The orbital tug startup Momentus yesterday announced that NASA has awarded it two contracts worth $7.6 million total to fly two experimental NASA payloads on its Vigoride tug.

One payload will test “test the ability to make semiconductor crystals in microgravity”, while the second will “test a rotating detonation rocket engine, a propulsion system designed to provide higher efficiency than traditional engines.” In this case the propellants used will be nitrous oxide and ethane.

Both will fly on the same Vigoride tug on a mission to be launched no earlier than October 2026. Momentus also says there is room for additional payloads on that mission.

It appears the increase in the number and launches of rockets has actually hurt the orbital tug business:

Momentus is among several companies that developed orbital transfer vehicles, or OTVs, like Vigoride to ferry spacecraft between orbits. They are designed to provide last-mile delivery to specific orbits for spacecraft launched on rideshare missions such as [SpaceX’s] Transporter [launches]. However, demand for such services has been slower to materialize than expected. “Candidly, that part of the market has not developed as much as people thought, say, five years ago,” [said John Rood, Momentus’ chief executive] during a panel at World Space Business Week in September. “The reason is many small manufacturers are multi-manifesting satellites to deploy a single plane with a single launcher.”

As a result, Momentus has focused on getting technology demonstration contracts such as the two above, with the tug acting more like a service module.

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Canadian rocket startup Nordspace signs deal for its mission control center

9:01 am

Proposed Canadian spaceports
Proposed Canadian spaceports

The Canadian rocket startup Nordspace, which earlier this week signed a deal for another company to establish ground stations for its proposed Atlantic Spaceport, today signed an agreement with the company Kongsberg Geospatial to provide software for running its mission control center.

According to the news release TerraLens “will ingest data from multiple sensors to deliver real-time three-dimensional (3D) visualization of launch operations, range safety, decision support, and vehicle tracking. This will help streamline launch operations and enable deployment of critical space missions to orbit in under 48 hours.” Kongsberg said TerraLens builds on their “experience supporting range safety and mission-critical visualization for the Andøya Space and Defence project in Norway.”

Andøya is Norway’s new commercial spaceport that has been launching suborbital government rockets for decades.

Nordspace continues to move forward quickly, having been established only three years ago. It is putting the pieces together for its spaceport, and is testing both a small suborbital rocket and the engines for its proposed orbital Tundra rocket. Though the race is certainly not over, it does appear Nordspace will get to orbit ahead of the Nova Scotia spaceport that was first proposed in 2016.

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Is Trump considering re-nominating Jared Isaacman for NASA administrator?

9:59 pm

Jared Isaacman
Billionaire Jared Isaacman

According to a report late today (based on anonymous sources), President Trump has held several face-to-face meetings in the past few weeks with billionaire Jared Isaacman, and those meetings have raised the possibility of Trump re-nominating him for NASA administrator.

According to Bloomberg News, President Trump has reportedly met with Isaacman several times in recent weeks to discuss NASA’s operational plans and future plans. Isaacman is the founder of fintech company Shift4 Payments and a private astronaut at SpaceX who has had a longstanding relationship with Elon Musk.

Isaacman, who has flown two private missions in space (and done one spacewalk), had been nominated by Trump for NASA administrator in December 2024, and was only days away from a Senate confirmation vote when Trump suddenly withdrew the nomination on May 31, 2025. Though it has never been clear why Trump withdrew the nomination, Isaacman’s past support of Democrats and his close links to Musk have been raised as issues, especially because of the Trump-Musk kerfuffle in the spring. Isaacman has also expressed some opinions since then about NASA and what it should do that might not have fit with Trump’s plans.

At the same time, NASA is presently without its own administrator, with Transportation Secretary Sean Duffy holding down the job as an interim head. It appears Trump might be reconsidering his earlier decision in order to get someone in charge of NASA who isn’t distracted by other responsibilities.

Note however that this report is solely from anonymous sources, and we all know how unreliable those are. The whole story could be fantasy cooked up by someone in DC for any number of devious political purposes.

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Saturn as seen by Cassini in 2004, four months before orbital insertion

12:18 pm

Saturn as first seen up close by Cassini
Click for original.

Cool image time! As most of the new cool images coming down from space seem mostly limited to Mars and deep space astronomy, I decided today to dig into the archive of the probe Cassini, which orbited Saturn from July 1, 2004 until September 15, 2017, when it was sent plunging into the gas giant’s atmosphere.

The picture to the right heralded the start of that mission, in that it was taken on February 19, 2004, a little over four months before the spacecraft fired its engines and entered orbit. I have rotated the image and cropped it to post here.

When Cassini snapped this picture it was just approaching the gas giant. The image itself is relatively small, with the resolution also relatively poor. You can see one of Saturn’s moons above the planet, but I can’t tell you which one. As noted at the webpage, this is a raw image that has not been “validated or calibrated.”

While not up to the amazing standard exhibited by Cassini’s images during its thirteen year stay at Saturn, it gave us a flavor of the wonders to come. Of all the planets, Saturn might be the most beautiful.

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Congressional budget action appears to just save two of seventeen on-going NASA missions

9:33 am

Though no final budget has yet been approved, based on the language in the budget the House has approved and sent to the Senate, only two of the seventeen on-going missions presently in space are specifically allocated money, thus allowing the Trump administration to zero out funding for the remaining fifteen.

The two missions saved are Osiris-Apex, on its way to the potentially dangerous asteroid Apophis, and the Magnetospheric Multiscale Mission (MMS), four satellites in orbit that observe the Earth’s magnetosphere.

The article at the link is typical of our propaganda press. It clearly opposes any cuts to NASA, and lobbies repeatedly for all funding to be reinstated. This pattern has gotten quite boring and tedious. It would be so refreshing to see a more objective take, at least one in a while.

However, its reporting confirms my own reporting from mid-September, where I noted that the vague language in the House budget bill would allow Trump to cut these missions. Congress wants to preen itself as supporting all funding for NASA, while carefully allowing Trump to go ahead with large cuts.

It is a good thing these two missions have been saved, though it does appear their funding has been trimmed. Of the fifteen missions in limbo, the only two that seem worth keeping is the Chandra X-Ray Observatory and New Horizons, though the second should likely be set up similar to the two Voyager spacecraft, with a very small crew aimed mainly at keeping the spacecraft functioning and able to send back data periodically.

We are in great debt. It is time that the federal government make some real choices. We can no longer afford to buy all the candy in the store.

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New study claims the giant impact that created the Moon’s South Pole-Aitken Basin was oblique, from the south

9:14 am

South Pole-Aitken Basin
Click for original. Blue indicates the basin, red
the “thorium-rich and iron-rich ejecta deposit”

While previous work had suggested the giant bolide that had created the Moon’s South Pole-Aitken Basin came in from the north, a new study now proposes that the impact was instead oblique from the south. From the paper’s abstract:

The ancient South Pole–Aitken impact basin provides a key data point for our understanding of the evolution of the Moon, as it formed during the earliest pre-Nectarian epoch of lunar history, excavated more deeply than any other known impact basin, and is found on the lunar far side, about which less is known than the well-explored near side. Here we show that the tapering of the basin outline and the more gradual topographic and crustal thickness transition towards the south support a southward impact trajectory, opposite of that commonly assumed. A broad thorium-rich and iron-rich ejecta deposit southwest of the basin is consistent with partial excavation of late-stage magma ocean liquids.

These observations indicate that thorium-rich magma ocean liquids persisted only beneath the southwestern half of the basin at the time of impact, matching predictions for the transition from a global magma ocean to a local enrichment of potassium, rare-earth elements and phosphorus (KREEP) in the near-side Procellarum KREEP Terrane.

In other words, when this impact occurred, part of the impact site in the south was still a magma ocean.

This result, if confirmed, has research implications for the missions targeting the Moon’s south pole. It suggests the geology will have that KREEP materials readily available, which will provide important information about the Moon’s early geological history.

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AST SpaceMobile signs up Verizon to use its constellation for phone-to-satellite service

8:40 am

The startup AST SpaceMobile, which is building a constellation of satellites able to act as cell towers for smart phones, has now signed an agreement with Verizon to give its subscribers access to the service.

AST SpaceMobile’s shares closed up more than 8% Oct. 8 after Verizon joined AT&T in signing a definitive agreement to use its planned space-based cellular network, easing investor concerns about SpaceX’s aggressive push into the fledgling direct-to-device (D2D) market.

The deal enables Verizon to provide D2D connectivity to its customers from some point in 2026, building on a strategic partnership announced in May 2024 that included plans for a $100 million investment in AST.

As noted above, AST has now signed both Verizon and AT&T, two of the largest cellphone companies, strengthening its position considerably in its competition with SpaceX’s Starlink cell-to-satellite alternative. Both deals appear to allow these companies the ability to sign contracts with both AST and Starlink, so it is possible the competition won’t be as fierce initially as it appears. It is also possible that eventually they will pick one or the other, so neither company should be complacent.

AST presently has five of its BlueBird satellites in orbit out of its planned 45-60 satellite constellation, and hopes to have at least half the constellation in orbit by the end of ’26. So even if it wins its cellphone competition with SpaceX that rocket company will still likely make some money launching AST’s satellites.

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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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