Tag: spaceflight

China to build space ground stations in Antarctica

10:06 am

According to a report on China’s state-run press that has now been deleted, China plans to build satellite ground stations in Antarctica for use by its ocean-observation satellites.

Official space industry newspaper China Space News reported Feb. 2 that a subsidiary of the China Aerospace Science and Industry Corporation (CASIC), a giant state-owned defense and space contractor, won a bid to construct a ocean observation satellite ground system. The project is being overseen by the National Satellite Ocean Application Service (NSOAS) and is stated to be part of a long-term marine economic development plan.

Renders of the 43.95 million yuan ($6.52 million) project show four radome-covered antennas at Zhongshan in East Antarctica. It is unknown if these are new and additional to antennas already established at the base. The antennas will assist data acquisition from Chinese satellites that orbit in polar and near-polar orbits. Satellites in these orbits are visible near the poles multiple times a day, allowing more frequent opportunities for downlink than with stations at lower latitudes.

Such ground stations could of course do many other things, including aiding military satellite surveillance.

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Researchers discover a new kind of water ice

9:59 am

Researchers have discovered a new kind of water ice that appears to match the density and structure of liquid water.

he ice is called medium-density amorphous ice. The team that created it, led by Alexander Rosu-Finsen at University College London (UCL), shook regular ice in a small container with centimetre-wide stainless-steel balls at temperatures of –200 ˚C to produce the variant, which has never been seen before. The ice appeared as a white granular powder that stuck to the metal balls. The findings were published today in Science.

The abstract for the paper can be read here.

Not only does this discovery suggest that there are many possible states of water ice, with a range of properties, this new type of ice could help explain many of the features we see on planets like Mars that appear to have been caused by flowing water. Mars has a lot of glacial ice, much of which might not be ice as we assume.

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Dramatic layers in Valles Marineris

12:48 pm

Dramatic layers in Valles Marineris
Click for original image.

Cool image time! The picture to the right, rotated, cropped, and sharpened to post here, was taken on December 28, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows one tiny section of the interior slope of the giant Martian canyon Valles Marineris.

The while layers are not made of frost or ice, because they are light tan, as per the color image. Thus, the alternating layers of dark and light indicate different layering events. The dark layers are probably major lava flood events with a lot of dark ash intermixed, while the tan layers were flood lava events with little dark ash.

The dark lines that cut across these layers are ripple dunes formed from dust that has accumulated inside Valles Marineris.
» Read more

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Fire in South Korean rocket facility

9:55 am

South Korea today reported that a fire had broken out in its Naro Space Center during work on a turbopump for a next generation rocket.

The fire started at 3:25 p.m. Tuesday at the Naro Space Center in the country’s southern coastal village of Goheung and was extinguished about an hour later, according to the Ministry of Science and ICT. The ministry said some experimental equipment was affected by the fire but reported no injuries.

The fire broke out while researchers were conducting an experiment to develop a 10-ton turbopump that injects fuel into an engine for a new space rocket, codenamed KSLV-III.

The KSLV-III will be an upgrade of the KSLV-II, also called Nuri, which has a launch scheduled right now in May. The KSLV-III is part of a $1.6 billion government project to develop this new rocket by 2032.

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ISRO completes investigation into failure of its SSLV rocket on first launch

9:40 am

India’s space agency ISRO today released the results of its investigation into the launch failure of its SSLV rocket on its first flight in August 2022.

The investigation revealed that there was a vibration disturbance for a short duration on the Equipment Bay (EB) deck during the second stage separation. SSLV is a three-solid-stage launch vehicle unlike the PSLV, which is a four-stage rocket. The vibration affected the Inertial Navigation System (INS), resulting in declaring the sensors faulty by the logic in the Fault Detection & Isolation (FDI) software.

In plain English, it appears the vibration caused a failure in the inertial navigation system, thus resulting in the premature engine shutdown of the fourth stage.

According to the report, the problem has been fixed and the next SSLV launch is now tentatively scheduled for February 9, 2023.

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South Korea officially cancels Russian launch contract, signs Vega-C instead

9:31 am

South Korea yesterday officially announced that it has canceled a Russian contract that was supposed to use an Angara rocket to launch a multi-purpose satellite last year and signed a deal with Arianespace to use the Vega-C rocket instead.

The cancellation appears directly because of the sanctions against Russia due to its invasion of the Ukraine. Picking the Vega-C as a replacement at this moment however seems a strange choice, considering its last launch was a failure and it has failed three times in the last eight launches. I suspect Arianespace gave South Korea an extremely good price.

Meanwhile, South Korean officials still seem willing to continue another Russian launch contract, using a Soyuz-2 rocket launching from Kazakhstan. According to the article, officials are right now merely negotiating a launch date.

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SpaceX successfully launches 53 Starlink satellites

1:08 am

Using its Falcon 9 rocket, SpaceX early this morning successfully launched from Cape Canaveral another 53 Starlink satellites.

This was the 200th Falcon 9 launch. The first stage, making its fifth flight, landing successfully on a drone ship in the Atlantic. The two fairing halves completed their sixth and seventh flight respectively. At of this writing the satellites themselves have not yet been deployed.

The 2023 launch race:

8 SpaceX
5 China
1 Rocket Lab
1 Japan

American private enterprise now leads China 9 to 5 in the national rankings, and the entire world combined 9 to 6.

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Buried silo on Mars?

4:50 pm

A buried silo on Mars?
Click for original image.

Cool image time! The picture to the right, rotated and cropped to post here, was taken on December 31, 2022 by the high resolution camera on Mars Reconnaissance Orbiter.

The headline is pure silliness, and should not be taken seriously. However, the geological feature is intriguing nonetheless. Its almost perfect circular shape suggests a partly buried or eroded crater, except that its consistent thickness, almost like a wall, does not match what the rims of any crater should look like. Crater rims are made up of ejected material pushed out during impact, and thus always include some chaotic features.

My guess is that this circular feature is volcanic in nature. Maybe this was once a caldera, and the circle indicates a final vent from which lava extruded and then solidified.

At least, that’s my story.

The feature is located in the southwest quadrant of Hellas Basin, the basement of Mars, at 49 degrees south latitude. While this also suggests that ice might help explain this, we must also remember that much of the geology in that basin remains unexplained. Thus, there is no reason not to add one more feature to the list.

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Is Amazon’s Kuiper Constellation project in trouble, or is it fleeing Seattle?

2:44 pm

According to a on-going listing of open space-related jobs in Seattle, Amazon has almost completely ceased hiring in that city, even as it is about to launch the first prototype test satellites in its proposed internet Kuiper satellite constellation.

To see the decline, take a gander at the graph here.

The analyst at the first link also noted in a later tweet this fact about Amazon hiring in Seattle:

…Went from 189 at end of October to 14 yesterday (in WA state, not total). It’s unusual, at least in the nearly 3 years I’ve been monitoring. Could be due largely due to Amazon hiring freeze.

Amazon is required by its FCC license to get over 1,600 Kuiper satellites launched in the next 40 months. The first two are only scheduled for launch on the first Vulcan launch now targeting a late March liftoff. As test prototypes, they will have to be tested for a period of time in orbit, followed by an assessment that might require changes in the design and construction of later satellites. These satellites would then have to be launched at an unprecedented rate, almost faster than anything SpaceX has done with its Starlink constellation.

At the moment it thus seems impossible for Amazon to meet the FCC deadline.

That the company appears to have stopped hiring space-related positions in Seattle at this very moment makes that goal even more impossible. This hiring freeze thus suggests that management has decided that the Kuiper project is untenable and is quietly cutting it off at the knees.

Or it could be that the hiring freeze is instead an indication that Amazon is slowly shifting operations out of leftist and insane Washington state. If so, work on the Kuiper project, including hiring, might be going on elsewhere.

Regardless, the state of the Kuiper project continues to be tenuous and uncertain, at best.

Hat tip to Jay, BtB’s stringer.

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Two die at Northrop Grumman facility that makes solid rocket boosters

2:21 pm

Two individuals died last night from an as-yet unknown cause at the Northrop Grumman Bacchus facility in Utah that makes solid rocket strap-on boosters for ULA’s rockets.

Further details about what exactly led to the deaths and who died were not made available.

The West Valley City Fire and Police Departments said they responded to the Bacchus facility after the two employees were found unconscious. Crews attempted life-saving measures and transported the two employees to the hospital, where they later died.

An investigation into the incident is ongoing by the Occupational Safety and Health Administration (OSHA).

Depending on circumstances, delivery of strap-on boosters for upcoming Atlas-5 and Vulcan launches could be impacted.

Hat tip to Jay, BtB’s stringer.

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A Martian hill of pillows

10:45 am

Curiosity's future path, taken January 31, 2023
Click for original image.

The cool image above was taken on January 31, 2023 by the left navigation camera on the Mars rover Curiosity. The red dotted line indicates roughly the planned route forward for the rover, though as Curiosity gets closer to that hill the terrain is looking increasingly difficult. The white box in the panorama below, taken two weeks earlier when the rover was about five hundred feet away, indicates the area covered by this picture. Since then Curiosity has traveled about 200 feet closer.

I post this picture specifically because of the small hill to the right of that path. Probably no more than fifty feet high, its entire surface appears cloaked by a pile of large, pillow-like pavement stones, almost as if the ground below had been washed away so that the massive top layer fell downward over time. Later, wind erosion over eons smoothed the rough edges of those massive blocks, giving them their cushion-like shapes.

This is strange geology. You might see such strange geology on Earth, but rarely. On Mars however strange geology appears increasingly common.

Moreover, to get a 3D sense of this terrain, load into your browser (on separate tabs) the full images of this hill, taken by Curiosity’s right and left navigation cameras (here and here). If you switch back and forth quickly between those tabs, you will see the slight shift in position between the two cameras, and be able to perceive this hill in three dimensions.

Panorama taken January 17, 2023 by Curiosity

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Galaxies without end

9:57 am

Webb infrared image of galaxies without end
Click for original image.

Cool image time! The mid-infrared picture to the right, cropped, reduced, and sharpened to post here, was taken by the Webb Space Telescope during its commissioning process last year shortly after launch, and was used to calibrate the Near-InfraRed Imager and Slitless Spectrograph (NIRISS) instrument, the very same instrument that for the past two weeks was not in operation because a cosmic ray had scrambled its software, requiring a reboot to fix it. From the caption:

The large spiral galaxy at the base of this image is accompanied by a profusion of smaller, more distant galaxies which range from fully-fledged spirals to mere bright smudges. Named LEDA 2046648, it is situated a little over a billion light-years from Earth, in the constellation Hercules.

While the large spiral is majestic, the tiny galaxy smudges are actually more important. Astronomers are right now scrambling to determine their distance and age in order to better understand what the universe was like, thirteen-plus billion years ago. So far the Webb data of these very early galaxies suggests that in this early universe there were many more fully formed galaxies, similar to ones we see in our time, than any theory of the Big Bang had predicted.

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