Category: Behind The Black

Russian astronaut id’s possible leak location in Zvezda

9:50 am

A Russian astronaut today told mission control that he thinks he has located another leak in the Zvezda module of ISS.

Roscosmos cosmonaut Pyotr Dubrov detected a possible air leak spot in the intermediate chamber of the Zvezda module aboard the International Space Station (ISS), the cosmonaut told the Flight Control Center during a communications session on Monday.

The Russian cosmonaut said he had traced the possible spot of the continued air leak while inspecting the Zvezda module’s intermediate chamber at the weekend. “I began preparing a perimeter for laying a cord today. I detected a suspicious spot and started to examine it,” the cosmonaut said, replying to a question about the work in the intermediate compartment in a live broadcast by NASA.

As the Russian cosmonaut said, he made a photo of the detected spot using a microscope with magnifying lens. He did not make video footage of the works, he said. [emphasis mine]

The highlighted words are significant. Up until now all leaks that the Russians have identified have been in Zvezda’s aft section, the part where the docking port is located. That pattern suggested that the many dockings over the module’s two decade-plus lifespan could have led to stress fractures in that module.

That they might have now found an air leak in intermediate section of the module suggests that the age-caused stress fractures are occurring in a more widespread manner. This is very concerning.

On a positive note, when the astronauts sealed the earlier leaks in the aft module, the loss of air dropped significantly. If the leak stops entirely when they seal this leak, we will have some confidence that the problem is under some control, for the time being.

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SpaceX launches more Starlink satellites

7:55 am

SpaceX used its Falcon 9 rocket to launch another 53 Starlink satellites this morning.

The company also successfully landed its first stage.

The leaders in the 2021 launch race:

41 China
25 SpaceX
18 Russia
4 Northrop Grumman
4 ULA
4 Europe (Arianespace)

China now leads the U.S. 41 to 38 in the national rankings. For SpaceX, this launch tied its own record for the most launches in a single year by a private company.

Off caving now. I hope everyone enjoys their Saturday.

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Glen de Vries, fellow suborbital passenger with Shatner, dies in plane crash

3:09 pm

Glen de Vries, one of the passengers that flew last month on Blue Origin’s New Shepard suborbital spacecraft with William Shatner, has died in a plane crash yesterday in New Jersey.

The New Jersey State Police named the two victims of the single-engine plane crash who died in Hampton Township’s Kemah Lake section of Sussex County on Thursday afternoon.

Thomas P. Fischer, 54, of Hopatcong and Glen M. de Vries, 49 of New York, New York, died in the crash, Trooper Brandi Slota, a spokesperson from the State Police, said early Friday.

Apparently Fischer was a flight instructor at Essex County Airport, where de Vries learned to fly.

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SpaceX completes Starship static fire test with all six engines

2:30 pm

Capitalism in space: SpaceX today successfully completed a short static fire test of Starship prototype #20 using all six orbital engines.

Though this prototype has previously completed static fire tests, those used only two engines. This test was the first using all the engines that will fly on the spacecraft’s first orbital flight.

When that flight will occur remains uncertain. Elon Musk has said it could fly as early as this month. First however the FAA must give final approval of its environmental reassessment of SpaceX’s Boca Chica spaceport. The agency has released a preliminary draft approval, but that is not yet finalized, with no clear date on when an approval will be issued.

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Snow on Martian dunes

12:58 pm

Snowy dunes near the Martian north pole
Click for full image.

Close-up of snowy dunes
Click for full image.

Cool image time! The first photo to the right, rotated, cropped, and reduced to post here, was taken on September 19, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows what appears to be snow nestled in the hollows of many dunes.

The second photo, cropped to post here, shows in high resolution the area in the white box.

Is that snow water, or dry ice? The location is very far north, 76 degrees latitude, so it could be either. Since the photo was requested by Candice Hansen of the Planetary Science Institute in Arizona, I emailed her to ask. Her answer:

Early in the spring all the bright stuff is dry ice. As it gets later in the spring it is probably still mostly dry ice but with HiRISE images alone we cannot really distinguish the composition of the ice. In-between the dunes it is almost certainly bare ground late in the spring, but since the dunes are dark the surface just looks bright in contrast

This picture was taken in summer, which suggests the snow is probably water, not dry ice. Yet, all the snow is found in the north-facing hollows, places that will remain mostly in shadow at this high latitude, 76 degrees north. Thus, it is possible that the snow is the last remaining traces of the thin dry ice mantle that covers the Martian poles down to about 60 degrees latitude during the winter, and sublimates away in summer.

Hansen had requested a whole bunch of similar images of such snowy dunes. As she explained,
» Read more

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Today’s blacklisted Americans: Parents threatened with doxxing by school board for criticizing the board’s mask policies

11:25 am

Owned by government
That’s apparently what the Scottsdale school board thinks.

They’re coming for you next: Parents who have publicly objected to the mask mandate policies of a Scottsdale, Arizona school board have discovered that at least two members of the school board, Jann-Michael Greenburg and Zachary Lindsay, had compiled or had access to a Google drive folder containing personal information of the parents, including social security numbers, financial information, pictures of themselves and their children.

The information as complied clearly suggested the board members were going to use it to harass and harm the parents.

Parents have since dubbed the Google Drive an “online dossier.” The folders housed within the dossier are labeled “SUSD Wackos,” “Press Conference Psychos,” and “Anti Mask Lunatics,” among others. Included under “Press Conference Psychos” was a video that shows parents calmly holding signs that read “CRT is Racist” and “SUSD We Demand Transparency.”

The dossier takes specific aim at the concerned parent group “Community Advocacy Network” (CAN). Administrators and founders of CAN’s active Facebook page have folders dedicated to screenshots of their Facebook comments, pictures of them with their husbands, and in some cases financial records.

Much of the information was apparently gathered by Greenburg’s father, who is documented to have videotaped the parents repeatedly, sometimes hiding his identity. He also has a track record of harassment.
» Read more

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South Korean lawmaker proposes his country build a reusable rocket

9:35 am

The new colonial movement: Following a meeting with high space officials, a South Korean lawmaker announced yesterday that his country is now planning the design and construction of a reusable rocket.

“Starting next year, the development of a high-performance reusable rocket with liquid-fueled 100-ton thrust engines will begin,” said Rep. Cho Seung-rae of the ruling Democratic Party of Korea, who represents the committee. “Having such a liquid-fueled high-performance rocket engine is necessary [for South Korea] to successfully fulfill the missions of launching a [robotic] lunar lander by 2030 and building the Korea Positioning System by 2035 on its own.”

Cho said the envisioned engine will be “capable of controlling its thrust with four consecutive reburns,” a function which he said would “significantly slash launch cost.” The lawmaker said the government will carry out two-year preliminary research on the issue, with the budget of 12 billion won ($10.2 million) in hand.

South Korea has yet to successfully launch its own homebuilt Nuri rocket, with the first test flight failing less than a month ago.

In addition, this announcement was a surprise, as the budget request for ’22, made in September, had not included it. It appears that this lawmaker and those high space officials teamed up to propose it. We shall see if it gets into the final budget.

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Corporal Matthew Creek – The Last Post

6:01 pm

An evening pause: Played at the Australian War Memorial, Canberra. From the youtube page:

In military tradition, the Last Post is the bugle call that signifies the end of the day’s activities. It is also sounded at military funerals to indicate that the soldier has gone to his final rest and at commemorative services

In honor of this Armistice Day, the eleventh day of the eleventh month, and those who gave their lives for freedom, something that appears at this moment sadly lost in Australia.

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History Unplugged – The Age of Discovery 2.0: Episode 4

3:06 pm

Episode four of the six part series, The Age of Discovery 2.0, from the podcast, History Unplugged, is now available here.

This is the episode where Scott Rank interviewed me about my new book, Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space. From his show summary:

Today’s guest is Robert Zimmerman, author of “Conscious Choice,” which describes the history of the first century of British settlement in North America. That was when those settlers were building their own new colonies and had to decide whether to include slaves from Africa.

In New England, slavery was vigorously rejected. The Puritans wanted nothing to do with this institution, desiring instead to form a society of free religious families, a society that became the foundation of the United States of American, dedicated to life, liberty, and pursuit of happiness.

In Virginia however, slavery was gladly embraced, resulting in a corrupt social order built on power, rule, and oppression.

Why the New England citizens were able to reject slavery, and Virginians were not, is the story with direct implications for all human societies, whether they are here on Earth or on the far-flung planets across the universe.

I think what I say nicely complements what Glenn Reynolds and Robert Zubrin said in the previous episodes.

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Scientists: Asteroid in an orbit entwined with the Earth might be Moon rock

11:45 am

Data obtained by scientists using ground-based telescopes now suggests that the small asteroid Kamo`oalewa, which has an orbit that makes it a quasi-Moon of the Earth, might have originally come from the Moon.

From their paper’s abstract:

We find that (469219) Kamoʻoalewa rotates with a period of 28.3 (+1.8/−1.3) minutes and displays a reddened reflectance spectrum from 0.4–2.2 microns. This spectrum is indicative of a silicate-based composition, but with reddening beyond what is typically seen amongst asteroids in the inner solar system. We compare the spectrum to those of several material analogs and conclude that the best match is with lunar-like silicates. This interpretation implies extensive space weathering and raises the prospect that Kamo’oalewa could comprise lunar material.

Kam’oalewa — which is only about 150 feet across — is one of five such quasi-Earth-moons. All orbit the Sun in orbits that are similar to the Earth’s and are such that the asteroids periodically loop around our planet each year.

This data will be useful to the Chinese, who are planning a mission to Kamo-oalewa in ’24 to grab samples.

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