Author: Robert Zimmerman

Atomic oxygen in Mars’ atmosphere, as seen by Al-Amal

12:06 pm

Oxygen distribution on Mars

The UAE’s Al-Amal Mars orbiter on July 19, 2021 released a new spectroscopic image, showing the global distribution of atomic oxygen in the Martian upper atmosphere.

The Emirates Ultraviolet Spectrometer (EMUS) mapped the distribution of atomic oxygen in the planet’s upper atmosphere, showing a dense patch emerging from the nightside into the new day.

The photo to the right, cropped and reduced to post here, shows this.

Over the next two years, covering one single Martian year, Al-Amal will monitor the distribution of this oxygen to see how it fluctuations from season to season, as well as from day to day. Gather this information will help the theorists untangle the past atmospheric history of Mars.

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Today’s blacklisted American: Democrat endorses racial discrimination and press censorship aimed at whites

11:36 am

Discriminated against by Chicago Democrats
Eagerly discriminated against by Democrats

Blacklists and segregation are back and the Democrats have got ’em: Lori Lightfoot, the Democratic Party mayor of Chicago, recently and enthusiastically defended her past racial disciminatory policy of refusing to give any one-on-one interviews to white reporters, saying she intends to do it again.

Chicago Mayor Lori Lightfoot said she would “absolutely” grant interviews only to journalists of color again after she drew waves of backlash earlier in the year when she announced the policy.

“I would absolutely do it again. I’m unapologetic about it because it spurred a very important conversation, a conversation that needed to happen, that should have happened a long time ago,” the Democrat said on a segment of the New York Times’s podcast Sway, released on Monday.

“Here is the bottom line for me: To state the obvious, I’m a black woman mayor,” she said. “I’m the mayor of the third-largest city in the country. Obviously, I have a platform, and it’s important to me to advocate on things that I believe are important. Going back to why I ran — to disrupt the status quo. The media is critically important to our democracy. … The media is in a time of incredible upheaval and disruption, but our City Hall press corps looks like it’s 1950 or 1970.”

» Read more

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For the first time astronomers measure the rotation of exoplanets

10:10 am

The uncertainty of science: Using the Keck Telescope in Hawaii astronomers for the first time have measured the rotation of several exoplanets orbiting the star HR8799, about 129 light years away.

Using the state-of-the-art Keck Planet Imager and Characterizer (KPIC) on the Keck II telescope atop Hawaiʻi Island’s Maunakea, astronomers found that the minimum rotation speeds of HR 8799 planets d and e clocked in at 10.1 km/s and 15 km/s, respectively. This translates to a length of day that could be as short as three hours or could be up to 24 hours such as on Earth depending on the axial tilts of the HR 8799 planets, which are currently undetermined. For context, one day on Jupiter lasts nearly 10 hours; its rotation speed is about 12.7 km/s.

As for the other two planets, the team was able to constrain the spin of HR 8799 c to an upper limit of less than 14 km/s; planet b’s rotation measurement was inconclusive.

These results are somewhat uncertain, as are any conclusions theorists try to draw from them. Even if confirmed, the sample is so small it doesn’t tell us anything yet about overall trends in planet formation or the expected spin rate of planets as they form.

Nonetheless, the detection appears valid and thus a scientific triumph. Astronomers have been telling me for years that figuring out ways to find out more about exoplanets is going to become the next hot subject in astronomy. This result illustrates this.

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Scientists: Clay, not liquid water, explains radar data under Martian south icecap

9:57 am

The uncertainty of science: In a new paper scientists claim that clay materials, not liquid water, better explain the radar data obtained by orbital satellites, initially hypothesized to be liquid water lakes under Mars’ south polar icecap.

Sub-glacial lakes were first reported in 2018 and caused a big stir because of the potential for habitability on Mars. Astrobiologists and non-scientists were equally attracted to the exciting news. Now, the solution to this question, with great import to the planetary science community, may be much more mundane than bodies of water on Mars.

The strength of this new study is the diversity of techniques employed. “Our study combined theoretical modeling with laboratory measurements and remote sensing observations from The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument on NASA’s Mars Reconnaissance Orbiter. All three agreed that smectites can make the reflections and that smectites are present at the south pole of Mars. It’s the trifecta: measure the material properties, show that the material properties can explain the observation, and demonstrate that the materials are present at the site of the observation,” Smith said.

This paper is only one of several recently that has popped the balloon on the liquid lake theory. Nothing is actually proven, but the weight of evidence is definitely moving away from underground liquid water under the south pole icecap.

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India officially delays launch of its next lunar rover to ’22

9:47 am

The new colonial movement: India has now officially delayed the launch of its next lunar rover, Chandrayaan-3, to the third quarter of 2022.

Chandrayaan-3 was planned to demonstrate India’s capability of soft landing on a celestial body, with the rover then communicating with Earth via the existing orbiter from Chandrayaan-2. The orbiter has an estimated lifespan of seven years. The third mission was announced months after the Vikram lander aboard Chandrayaan-2 crash-landed on the lunar surface just 2.1 km from its destination in September 2019. Chandrayaan- 3 was initially scheduled for late 2020 or early 2021, but the disruption caused by the pandemic affected the schedule.

The Wuhan flu panic has essentially shut down India’s entire space program for more than a year. Not only has the country only done one launch so far in 2021, far less than expected, it has also had to delay its manned space program by a year, as well as the launch of its own new smallsat rocket.

The delay in launches, including that smallsat rocket, is likely losing India customers in the commercial market, especially because the private rocket companies in the U.S. have continued to launch with almost no delays. If India doesn’t get off the ground soon its rocket industry will be seriously damaged in a way that might take years to recover.

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China’s Long March 2D rocket launches earth observation satellite

9:39 am

China today successfully used its Long March 2D rocket to launch an earth observation satellite into orbit.

The launch was from one of China’s interior spaceports, so the expendable first stage and fairings landed within China. No word on whether they landed uncontrolled or used the parachutes or grid fins to control the landing.

The leaders in the 2021 launch race:

24 China
20 SpaceX
12 Russia
3 Northrop Grumman
3 Rocket Lab

The U.S. still leads China 30 to 24 in the national rankings.

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Nauka finally docks with ISS

9:21 am

ISS configuration with Nauka added
The configuration of the Russian portion of ISS with
Nauka and the as-yet launched docking hub.

This morning the new fullsize module to ISS, Nauka, finally docked with the station, ending a week of tension because of issues with its engines.

The docking was not without issue, with Russian cosmonauts noting that Nauka wasn’t on the correct course less than an hour before docking; however, a retro burn quickly corrected the issue. After also troubleshooting an issue with the TORU manual docking system, Nauka successfully docked in automated fashion to the Zvezda service module’s nadir port at 09:29 EDT / 13:29 UTC, marking the first major expansion to the Russian segment for over 20 years.

They will now begin a series of eleven spacewalks to outfit the module. This includes installing a new European-built robot arm and transferring an airlock and radiator on a different module that were originally built to be attached to Nauka and have been waiting eleven years for its much delayed arrival.

In November Russia will then launch a small docking hub module that will dock with Nauka and provide the docking ports that were lost when the Piers module was detached earlier this week (thus allowing Nauka to dock). This new docking hub is also critical, because it will allow Russia to limit dockings to the aft port on Zvezda, which has serious structural stress issues and must be treated gently to prevent further hull cracks and air leaks.

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Rocket Lab returns to flight, launching an American military test satellite

11:53 pm

Capitalism in space: Rocket Lab tonight (July 29th in New Zealand) successfully launched its Electron rocket to place an American military technology test satellite into orbit.

This was the company’s first launch since a launch failure in May. Though the company has previously fished two first stage boosters out of the ocean as they test the engineering to allow the recover and reuse of those first stages, on this flight they made no such attempt.

The leaders in the 2021 launch race:

23 China
20 SpaceX
12 Russia
3 Northrop Grumman
3 Rocket Lab

The U.S. now leads China 30 to 23 in the national ranks. Last year the U.S. launched 40 times total. With the year seven months old, the U.S. has already reached three quarters of that number, suggesting that there is an outside chance that this year it could break its record of launches in a year, 70 in 1966. At the least the U.S. looks like it will achieve comparable launch numbers that were typical in the mid-1960s, at the dawn of the space age when NASA and the military were launching a lot to figure out the best way to do things.

Now the launches are privately owned, and exist because everyone is making money doing it. Assuming the world doesn’t get hit with a real disaster (instead of last year’s fake Wuhan flu panic), expect these numbers to continue to rise in the coming years.

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Glen Campbell – William Tell Overture

6:01 pm

An evening pause: “Hi-Yo, Silver! Away!”

Hat tip Mike Nelson.

Note: I am in need of new evening pause suggestions. If you wish to suggest something that you think the readers here will like, mention that you have something to suggest in a comment but don’t, I repeat, don’t say what the suggestion is. I will contact you directly to get it, also providing you the guidelines for offering more suggestions.

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The nearest hill to China’s Zhurong

3:45 pm

Pitted cone near Zhurong
Click for full image.

Cool image time! The science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) today released a pair of images the camera took on June 28, 2021 of the nearest pitted cone to China’s Zhurong rover.

The stereo anaglyph to the right, cropped and reduced to post here, allows you, with blue-red 3D glasses, to see the cone in three dimensions. Quite impressive. As noted by Alfred McEwen of the Lunar & Planetary Laboratory in Arizona in his caption,

This image completed a stereo pair of a region just west of where the Zhurong rover landed in southern Utopia Planitia.

The cutout is from a portion of the stereo anaglyph, showing an enigmatic pitted cone. Is this cone composed of sediments or volcanic materials? The sharp bright features surrounding the cone are aeolian (wind-blown) landforms.

According to McEwan, the hill itself is about 200 to 220 feet high, with the pit at its top about 60-65 feet deep.

While McEwan has told me this cone would be his primary target if he was running Zhurong, it appears the Chinese are instead heading south toward the largest nearby crater, and on the way inspecting the parachute, fairing, and heat shield discarded just prior to landing.

The mosaic below from three MRO context camera images provides a wider overview.
» Read more

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Today’s blacklisted American: Twitter bans all election audit accounts in Arizona, Georgia, Pennsylvania, Nevada, and Wisconsin

12:48 pm

Liberty and freedom banned
Twitter’s goal: Only Democrats can have freedom of speech.
Photo credit: William Zhang

The new dark age of silencing: In a single purge Twitter yesterday banned all the accounts of all election audits going on in Arizona, Georgia, Pennsylvania, Nevada, and Wisconsin.

Earlier today Twitter permanently suspended all nine of the official ‘Audit War Room’ accounts from it’s platform. The accounts were a main source for breaking updates and were banned as part of big tech’s continued attempt to shield the public from the stunning revelations being found regarding the fraudulent 2020 election.

Unsurprisingly, Twitter provided no reason for the suspensions. [emphasis mine]

Note the highlighted sentence. Twitter is no longer even pretending that it is banning these accounts because of some vague “community standard” that each violated. No, Twitter banned them simply because it is possible that the election audits going on in these states might actually uncover evidence of election fraud, and to allow honest and real news reporting can no longer be allowed, if that reporting might threaten the dominant leftist agenda and the Democratic Party politicians who are imposing it.
» Read more

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