Category: Points of Information

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

August 3, 2023 Quick space links

3:47 pm

Courtesy of BtB’s stringer Jay.

  • Northrop Grumman to upgrade Cygnus freighter

    • The changes will increase its payload capacity, allow it to dock directly to a port rather than being berthed by a robot arm, and — most importantly — refine is ability to raise ISS’s orbit using its engines. This last capability replaces the Russians, and will be a need that future commercial stations will require.

 

 

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Pushback: Student wins against school officials who tried to suppress her first amendment rights

12:39 pm

Maggie DeJong
Maggie DeJong, fighting back hard and winning

Bring a gun to a knife fight: In April Maggie DeJong, a student at Southern Illinois University Edwardsville (SIUE), sued [pdf] three of the college’s faculty members for attempting in 2022 to both punish her and well as silence her from her first amendment right to speak, simply because some other leftist students complained they did not like her opinions. As I wrote in April when I first reported this story:

These officials issued three “no contact” orders against DeJong, forbidding her to have any contact with three co-students in her program, simply because she had religious and political opinions they disagreed with and did not wish to hear. This orders essentially blacklisted her from the program, because of its small nature, and were literally a priori gag orders on her right to freely express her opinions. The officials also admitted that DeJong had violated no school policy, nor did they provide her any due process before issuing the orders. When challenged by DeJong’s lawyers, the university quickly realized the utter illegality of these orders, and cancelled them.

Unlike most recent cases of blacklisting, DeJong did not sue the university but the individuals involved, making them personally liable. » Read more

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The dry and mountainous terrain west of Jezero Crater

12:00 pm

The dry and mountainous terrain west of Jezero Crater
Click for original image.

Since my earlier update today about Perseverance and Ingenuity mentioned the very diverse and strange geology known to exist west of Jezero Crater and where the rover is eventually headed, I thought it worthwhile to post another cool image of that terrain.

The picture to the right, rotated, cropped, reduced and sharpened to post here, was taken on May 22, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled a “terrain sample” image, the location was likely chosen by the camera team in order to fill a gap in the camera’s schedule so that they can maintain its proper temperature. Having a gap that put the spacecraft over this region to the west of Jezero was however a great opportunity to get another look at this rocky, mountainous, and very parched terrain, located in Mars’ very dry equatorial regions.
» Read more

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Perseverance snaps new close-up of Ingenuity

10:28 am

Overview map
Click for interactive map.

Ingenuity as seen by Perseverance on August 2, 2023
Ingenuity as seen by Perseverance on August 2, 2023.
Click for original image.

Cool image time! With Perseverance and Ingenuity in the past week getting close together for the first time in months, the Perseverance team naturally turned its high resolution mast cameras at the helicopter. The picture to the right, cropped, reduced, and sharpened to post here, was taken on August 2, 2023 by the rover’s left mast camera, showing Ingenuity only about two hundred feet away.

The blue dot on the overview map above shows Perseverance’s present location, with the green dot marking Ingenuity’s. The picture to the right is therefore looking almost due south. The red dotted line indicates the rover’s planned route, moving towards Neretva Vallis, the gap in the rim of Jezero Crater from which the delta had flowed, eons ago. The rover’s goal is to eventually enter that gap and explore the very diverse and strange geology known to exist outside the crater to the west.

We should also expect even better images of Ingenuity in the next week. Its 54th flight is scheduled for today, in which the engineering team wants to send the helicopter on a simple straight up and down hop of sixteen feet in order to better “localize” the helicopter. With Perseverance less than two hundred feet away, its cameras should be able to assemble a great movie of that flight.

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New software detects its first potentially dangerous asteroid

9:32 am

New software designed to detect asteroids, developed for use with the Rubin Observatory presently being built in Chile, has successfully discovered its first potentially hazardous asteroid (PHA) using data from another smaller operational ground-based telescope.

The discovered asteroid is 600 feet long, large enough to pose a real threat should it ever hit the Earth. Fortunately, the data says that though its orbit can take it as close as 140,000 miles there is no impact likely in the foreseeable future.

When the Rubin telescope begins its planned ten year survey of the entire night sky in 2025, this software is expected to almost triple the number of known potentially-hazardous-asteroids, from 2,350 to almost 6,000.

Funded primarily by the U.S. National Science Foundation and the U.S. Department of Energy, Rubin’s observations will dramatically increase the discovery rate of PHAs. Rubin will scan the sky unprecedentedly quickly with its 8.4-meter mirror and massive 3,200-megapixel camera, visiting spots on the sky twice per night rather than the four times needed by present telescopes. But with this novel observing “cadence,” researchers need a new type of discovery algorithm to reliably spot space rocks.

Thus, the development of this new software.

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China’s Long March 4C launches weather satellite; SpaceX launches communications satellite

10:09 pm

Two launches this evening. First China used its Long March 4C rocket to put a weather satellite into orbit, lifting off from its Jiuquan spaceport in northwest China. No word on where the lower stages crashed within China.

SpaceX then used its Falcon 9 rocket to put an Intelsat commercial communications satellite into orbit, lifting off from Cape Canaveral. The first stage successfully completed its sixth flight, landing on a drone ship in the Atlantic. The two fairing halves completed their eighth and tenth flights respectively.

As of posting the satellites from both launches had not deployed.

The leaders in the 2023 launch race:

52 SpaceX
31 China
9 Russia
6 Rocket Lab
6 India

American private enterprise still leads China in successful launches 60 to 31, and the entire world combined 60 to 51, while SpaceX by itself leads the world (excluding American companies) 52 to 51.

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Rosie Hodgson & Rowan Piggott – Dancing At Whitsun

6:01 pm

An evening pause: I was listening to a different recording of this song by Gordon Bok, Ann Muir, and Ed Trickett from 1978 and thought it gives us a window into a gentle culture that is now dead. As the youtube webpage for the performance below states, the song was written as “a tribute to the women who took up morris dancing during the First World War, when the male mortality rate in some English towns and villages approached seventy percent.”

It is the gentle quality of this song, its words and its sound, that is generally dead in today’s culture. Almost all modern music must be loud — shouted more than sung — with a rock beat that while energetic and enthusiastic is also somewhat harsh. Curse words are normal. It is rare to hear new popular music dedicated to expressing gentle soft love.

I post this as a memorial to that lost civilization.

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August 2, 2023 Quick space links

4:26 pm

Courtesy of BtB’s stringer Jay.

 

 

 

  • Luna-25’s mission profile

    • Based on this profile, the spacecraft will head to the Moon on its first orbit after launch, and get there only a few days later. This means it will be attempting its landing only days before India’s already launched Chandrayaan-3, which is targeting an August 23rd landing date.

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Voyager Space partners with Airbus to build its Starlab space station

12:00 pm

Voyager Space, one of the three companies with a contract from NASA to develop a commercial private space station, has now signed a partnership agreement with the European aerospace company Airbus to work together to build its Starlab space station.

The companies announced Aug. 2 the creation of a joint venture, also called Starlab, that will be responsible for the development and operation of the station. The joint venture builds upon an agreement announced in January where Voyager selected Airbus to provide technical support for the proposed station.

“This transatlantic venture with footprints on both sides of the ocean aligns the interests of both ourselves and Voyager and our respective space agencies,” said Jean-Marc Nasr, head of space systems at Airbus, in a statement. “Together our teams are focused on creating an unmatched space destination both technologically and as a business operation.”

Though no specifics of the deal were released, Voyager will continue to retain 51% control. It appears that Voyager’s goal with this deal is to get its foot in the door of Europe. With ESA no longer considering doing any work on the space stations of either China or Russia, it needs a place to go after ISS is retired. By signing up Airbus as a partner Voyager makes Starlab the most likely go-to station for these European companies and governments.

Isn’t private enterprise and freedom wonderful? Without even trying Europe is going to get a space station of its own, and it will do it by hiring this private consortium of American and European companies.

Hat tip to Jay, BtB’s stringer.

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The first glacial evidence found on Mars back in 2007

11:36 am

Glaciers on Mars?
Click for original image.

Cool image time! The picture to the right, cropped, reduced, sharpened, and annotated to post here, was taken on January 3, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the eastern wall of what the scientists call a graben, a large depression caused when the ground inside the depression suddenly shifted downward.

The elevation difference between the high and low points is about 3,500 feet. The streaks on the lower half of the cliff wall are slope streaks, a phenomenon unique to Mars that remains at this moment unexplained. Though the streaks resemble avalanches, they do not change the topography in any way, have no debris pile at their base, and appear instead to be a stain that appears at random times of the year that fades with time.

What is intriguing about this picture however is the wavelike floor on its western half. At first glance these waves suggest some form of dust dunes or lava flows, but neither conclusion appears correct. Instead, we are looking at what was one of the first discoveries on Mars of what scientists have determined to be glacial features.
» Read more

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Senate committee gives NASA and Commerce responsibility for removing space junk

9:10 am

The Senate Commerce committee has now okayed a bill that would require NASA to develop several space junk removal projects while giving the Commerce department the responsibility of identifying what space junk needs to be removed.

The core of the bill would direct NASA to establish an active debris removal program. That would include funding research and development activities “with the intent to close commercial capability gaps and enable potential future remediation missions for such orbital debris,” the bill states. NASA would also fund a demonstration mission for debris removal and allow it and other agencies to procure debris removal services.

The version of the ORBITS Act approved by the committee is different from the version introduced earlier this year. Among the changes is in a section that originally called on NASA to develop a prioritized list of orbital debris to remove. In the new version, that responsibility is given instead to the Commerce Department. The Commerce Department, through its Office of Space Commerce, is developing a space traffic coordination system called the Traffic Coordination System for Space (TraCSS) that will take over civil space traffic management roles currently handled by the Defense Department. That involves taking in data from Defense Department and other sources and using it to provide warnings of potential close approaches to satellite operators.

Though unstated, this bill appears to be a direct slap at the FCC’s effort under the Biden administration to claim the power to regulate space junk, despite its lack of statutory authority to do so.

The bill is of course not yet law, as it still needs to be approved by both the House and Senate. However, some version that stops the FCC now seems very likely, as the House itself has already rejected a bill that would have approved the FCC power grab.

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