A massive Martian glacier that looks just like a glacier on Earth

Massive glacier on Mars
Click for full image.

If you ever had any doubt about the existence of glaciers on Mars, today’s cool image should ease those doubts. The photo to the right, taken on August 27, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and rotated, cropped, and reduced to post here, shows many features that are appear identical to features found on typical massive glaciers on Earth.

Downhill is to the northwest. The many parallel grooves or fractures running along the length of the glacier resemble what are seen in many similar Earth glaciers. Some of these fractures are caused by the glaciers slow drift downward, with different sections moving at slightly different rates, thus causing a separation along the flow. Hence the parallel fractures.

These fractures also show evidence of some erosion. Because these Martian glaciers are no longer getting more snowfall, they are no longer growing. However, if the thin layer of dust and debris that protects the ice gets blown off or removed by motion, the ice is exposed and can then sublimate into gas so that the glacier erodes.

On the flow’s edges the darker parallel lines also resemble features seen on Earth, showing the exposed layers of the glacier’s past levels. The same thing can be seen on either side of the canyon’s walls.

The wide smooth section near the center of the parallel lines could very well be an impact crater that landed on this glacier sometime in the far past, and has since been distorted in shape as the glacier flowed downward.

If you still have doubts, the context image below, taken by MRO’s wide angle context camera, should help further allay those doubts.
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HBO to create six-part “scripted” series on Musk and SpaceX

Where NOT to get your facts about SpaceX’s history: HBO today announced that it is going to create a six-part “scripted” drama series describing the history of Elon Musk and SpaceX.

In terms of story, the small-screen narrative will follow Musk as he develops the first SpaceX rocket and launches it into orbit with a handpicked team of engineers on a remote island in the Pacific. His dream of humanity colonizing the universe takes one step closer to reality with the first (and successful) manned Falcon 9/Crew Dragon mission on May 30, 2020. The participating NASA astronauts, Bob Behnken and Doug Hurley, have since returned to Earth from the International Space Station.

From my experience writing non-fiction screenplays for cable television when I was still in the movie business, I can guarantee that this drama will have very little connection to reality, and is more likely to get numerous basic facts wrong. It will thus accomplish nothing but to misinform anyone who watches it.

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Astronomers watch star’s destruction as supermassive black hole eats it

Astronomers, using a number of ground-based and orbiting telescopes, successfully observed a star’s destruction as it was ripped apart and eaten by a supermassive black hole at the center of a galaxy 215 million light years away.

The team carried out observations of AT2019qiz, located in a spiral galaxy in the constellation of Eridanus, over a 6-month period as the flare grew in luminosity and then faded away. “Several sky surveys discovered emission from the new tidal disruption event very quickly after the star was ripped apart,” says Wevers. “We immediately pointed a suite of ground-based and space telescopes in that direction to see how the light was produced.”

Multiple observations of the event were taken over the following months with facilities that included X-shooter and EFOSC2, powerful instruments on ESO’s VLT and ESO’s NTT, which are situated in Chile. The prompt and extensive observations in ultraviolet, optical, X-ray and radio light revealed, for the first time, a direct connection between the material flowing out from the star and the bright flare emitted as it is devoured by the black hole. “The observations showed that the star had roughly the same mass as our own Sun, and that it lost about half of that to the monster black hole, which is over a million times more massive,” says Nicholl, who is also a visiting researcher at the University of Edinburgh.

Astronomers have seen similar events previously, but never so close and never so early in the event.

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Rogozin: Russia mostly bowing out of Gateway

The new colonial movement: The head of Russia’s space agency Roscosmos, Dmitry Rogozin, yesterday announced during a speech at a virtual international space conference that Russia is mostly bowing out of participation in the U.S. lunar Gateway space station project, and will instead seek cooperation with China’s lunar program.

Russia apparently does not like the fact that the U.S. is insisting on taking a lead role in Gateway, and have it designed to primarily meet U.S. goals. Russia has also previously expressed opposition to the Trump administration’s insistence that any partners in Gateway sign the Artemis Accords, designed to provide legal protection for any private investment in space.

Whether they can get the deal they want from China remains very uncertain. China has made it clear they are willing to work with other partners, but China has also made it clear that they — like the U.S. — have their own goals in space, and that anything they do must serve those goals.

In his response, Bridenstine focused on the areas of agreement with Russia (establishing technical standards), but reiterated the U.S.’s commitment to the Artemis Accords. It is clear the Trump administration is fine with Russia’s decision.

For the U.S. Russia’s decision is probably a good thing. It leaves the way open to do what we want, without having to negotiate every decision. (This puts aside the issue on whether Gateway itself is a good decision.)

For Russia this announcement means they are really on their own for the first time since the Soviet era. Following the fall of the Soviet Union in 1991 Russia has largely been incapable of developing any new space project, and has needed to link its effort to the U.S. and ISS in order to be able to accomplish much of anything. Breaking free might actually benefit them, as the competition will force them to focus on their own efforts and actually achieve something.

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Blue Origin successfully completes another unmanned suborbital test flight of New Shepard

Capitalism in space: Blue Origin today successfully completed the seventh unmanned suborbital test flight for this particular New Shepard spacecraft/booster, landing both with no issues.

After a ten-month lull in flights following the previous test of Blue Origin’s suborbital New Shepard launch system, the company conducted a launch and landing of the fully reusable booster and capsule duo. Following weather-related and technical issues during a window late in September, the flight took place from the company’s West Texas facility — near Van Horn, Texas — on Tuesday morning at just after 8:35 AM CDT / 13:35 UTC.

This mission, also known as NS-13, saw 12 commercial payloads launched to the edge of space and back, including a NASA-developed sensor suite that could enable future lunar landing craft to perform safe and precise touchdowns on the surface of the Moon as part of NASA’s Artemis exploration program. As in the name, the NS-13 mission was the 13th test flight of the New Shepard launch system, and the first such flight of 2020.

What happens next with New Shepard remains unclear. Blue Origin officials had previously said they would do three test flights this year, with the last manned. Now it appears that manned flight will slip into ’21, but will use a new spacecraft/booster, the fourth built during New Shepard’s development.

I have embedded the video of the flight below the fold, cued to begin just before launch.
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CDC study: Masks do nothing to stop COVID-19 infection

A new CDC study shows that masks appear to have zero effect in stopping the spread of the COVID-19 virus.

An underreported, recently-published CDC study adds to the pile of evidence that cloth masks or other forms of mandated face coverings only contribute negatives to our COVID-19 problem. The study also displays — despite the constant accusations of widespread misbehavior from public health officials — that Americans are adhering to mask wearing, but mask wearing is not doing us any good.

The CDC study, which surveyed symptomatic COVID-19 patients, has found that 70.6% of respondents reported “always” wearing a mask, while an additional 14.4% say they “often” wear a mask. That means a whopping 85% of infected COVID-19 patients reported habitual mask wearing. Only 3.9% of those infected said they “never” wear a face covering.

The graph below from the study is damning. It shows that wearing a mask made no difference between those who got the disease (left column) and those in the control group.

CDC study graph: masks made no difference.

In either case, the number of cases remained the same no matter how much you wore the mask.

I suspect however that a larger study will find more infections among full-time mask wearers, especially if that study delineates between those medical professionals who are trained to wear the mask properly and with care, keeping it anti-septic, and the general public who fingers their mask continually and then sticks it in their pocket between uses.

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Bill Hammack – The Aluminum Beverage Can

An evening pause: I usually like to spread out pauses from the same artist, but this video by Bill Hammack, the engineerguy, is worth seeing, even though I posted another by Hammack only a week ago.

Hat tip Jim Mallamace.

By the way, I am in great need of suggestions for the evening pause. Those that have suggested before know what to do. If you haven’t made a suggestion previously and have something you want to suggest, mention this fact in the comments below (without providing the suggestion) and I will contact you with the guidelines for making suggestions.

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After months of encouraging lockdowns WHO officials now condemn them

This past weekend officials of the World Health Organization (WHO) came out to publicly condemn the policy of lock downs to limit the spread of COVID-19.

Dr. David Nabarro from the W.H.O. appealed to world leaders on Saturday, telling them to stop “using lockdowns as your primary control method” of the coronavirus.

He claimed that the only thing lockdowns achieved was poverty – with no mention of the potential lives saved.

…Speaking to Andrew Neil of the Spectator magazine, Dr. Nabarro bemoaned the collapse of the international tourism industry and claimed there would be a “doubling” in the levels of world poverty and child malnutrition by 2021 as he warned that lockdowns make “poor people an awful lot poorer.”

“I want to say it again: We in the World Health Organisation do not advocate lockdowns as a primary means of controlling this virus,” Dr. Nabarro said.

This directly contradicts the head of WHO, who since April has been advocating lockdowns.

This disagreement within WHO further highlights the uncertainty of the effectiveness of lock downs, even as those lock downs without question devastate economies.

It does appear strange however for WHO to suddenly change its position, now so close to the election. If one was cynical, one could almost suspect they are now doing this because the election is almost here and once it passes and Joe Biden wins, they will need justification for ending the lock downs.

Of course, this assumes Biden will win. I predict that if Trump wins, WHO will suddenly have second thoughts, and will once again insist that the only cure of COVID is to outlaw all economic activity, as well as any conservative protest or gathering. BLM riots however will of course be permitted, as COVID cannot spread at such events.

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Florida proves (again) the stupidity of mask mandates

On September 25, 2020 the Republican governor of Florida, Ron De Santis, lifted all mandates on mask use while ending all restrictions on restaurants

He was immediately lambasted by numerous Democratic Party Florida mayors as well as:

Dr. Anthony Fauci, who warned that the change is “very concerning to me. When you’re dealing with community spread, and you have the kind of congregate setting where people get together, particularly without masks, you’re really asking for trouble.”

The mayor of Miami Beach, Democrat Dan Gelber, was especially harsh, stating in a letter to De Santis that
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The Navy’s overreaction to COVID-19

On October 10th the press breathlessly reported that “nearly two-thirds of the Navy’s deployable warships have endured COVID-19 outbreaks”.

What was not mentioned was the number of sailors killed by the outbreaks. Though the NAVY report says nothing about mortality, it does say this:

Sailor rates of infection are generally the same as the rates of infection in the local area. … Within the uniformed Navy population, roughly 35 percent of infected sailors exhibit few to no symptoms. This should build confidence in the ship’s ability to fight through outbreaks.

I strongly suspect that practically no one has died yet from coronavirus on a Navy ship. In fact, this sounds exactly like a typical flu season, where the flu quickly spreads among those confined in close quarters, but then peters out shortly thereafter, forgotten.

In other words, COVID-19 in the Navy (as elsewhere) is really nothing more than a variation of the flu, possibly more infectious to all and more harmful to the elderly sick, but harmless to practically everyone else.

The bad part of this is that, rather than let the disease play out quickly so that crews are promptly immune and the epidemic no longer can effect efficiency — as humanity has done for eons — the Navy is panicking like everyone else, instituting strict quarantines on all those infected, plus social distancing and mask rules. All this will do is prolong the agony, and interfere with the Navy’s operation. You can’t run a ship or a submarine realistically if you require everyone to keep six feet distance at all time.

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