Behind The Black – Robert Zimmerman

Firefly gets another launch contract

February 23, 2021 9:10 am Robert Zimmerman

Capitalism in space: Firefly Aerospace, which hopes to do the first launch of its new Alpha rocket sometime this spring, has won another launch contract, this time with General Atomics to put an Earth science satellite in orbit in ’22.

The other contracts:

In December, the company won a NASA Venture Class Launch Services launch contract valued at $9.8 million to launch two sets of cubesats into polar orbits. It won a $93.3 million contract from NASA’s Commercial Lunar Payload Services program Feb. 4 for the 2023 launch of the company’s Blue Ghost lander carrying NASA payloads. That lander will be launched on another company’s rocket rather than Alpha.

Like all new rockets, the first launch will be highly risky. If successful however it will add one more launch company to the smallsat market, and encourage a further drop in the cost of getting such smallsats into orbit.

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Second passenger chosen for private manned SpaceX mission

February 22, 2021 11:37 pm Robert Zimmerman

Capitalism in space: Jared Isaacman, who has purchased an entire Dragon/Falcon 9 flight for the first private commercial manned mission scheduled for later this year, has picked the flight’s second passenger.

The second member of a four-person crew for what’s likely to be the first privately funded orbital space tour has been identified: She’s Hayley Arceneaux, a 29-year-old physician assistant who works at St. Jude Children’s Research Hospital in Memphis, Tenn. — and was successfully treated for bone cancer at St. Jude almost two decades ago.

Arceneaux was invited to be part of the Inspiration4 mission weeks ago by its commander and principal funder, Shift4 Payments CEO and founder Jared Isaacman — but her identity was kept secret until today.

This choice fits Isaacman’s main goal, which is to use the publicity of the flight in raise money for St. Jude’s. So far almost $10 million has been raised.

Two more passengers need to be chosen. One will be picked from a lottery of people who donate to St. Jude’s, with the second being an entrepreneur picked by a panel of judges. The deadline to enter both slots closes on February 28th.

As for the flight itself, it will spend two to four days in orbit.

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First panorama from Perseverance

February 22, 2021 11:02 pm Robert Zimmerman

The Perseverance science team has released the first panorama taken by the Perseverance rover after landing on Mars February 18th.

Below the fold however I have embedded something far better than the science team’s mosaic. Andrew Bodrev has taken these same navigation camera images and created a 360 degree virtual reality panorama, one that you can pan and tilt at your own pleasure. The view also includes the sounds of the Martian winds from the rover’s microphone. If you pause it you won’t hear the sounds, but you can scan and rotate for as long as you want.

» Read more

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NASA postpones second SLS static fire test

February 22, 2021 10:52 pm Robert Zimmerman

NASA today announced that it was postponing the second SLS static fire test of the rocket’s core stage due to a valve issue in its main engines.

NASA said it was postponing the Green Run static-fire test, which had been scheduled for Feb. 25, after discovering a problem with one of eight valves called “prevalves” associated with the stage’s four RS-25 main engines. The valve, which supplies liquid oxygen, was “not working properly,” NASA said in a statement, but didn’t elaborate on the problem.

Engineers identified the problem during preparations over the weekend for the test. NASA said it will work with Boeing, the prime contractor for the core stage, to “identify a path forward in the days ahead and reschedule the hot fire test” but did not set a new date for the test.

This was not the first time Boeing and NASA has had valve problems with the rocket, though this problem appears unrelated to the previous issue.

Either way, the continuing technical problems — such as the two previous aborts during testing — does not build confidence in the rocket. First, the schedule is very tight, and is getting tighter. Its first unmanned test flight was supposed to happen by the end of this year, and right now that looks very unlikely. Yet, it must happen within the next twelve months because they have begun stacking the strap-on solid rocket boosters, and those have a sell-by date.

More important, these issues raise big red flags as to the overall trustworthiness of the rocket. I certainly would not want to fly on it, at least not until I see it fly at least a half dozen times successfully. The problems however suggest that achieving such a track record is going to be quite difficult.

And if SLS has any major failures during any launch, be prepared for Congress’s support to finally collapse, especially with the on-going spectacular progress being achieved by SpaceX with Starship along with two Falcon Heavy launches planned for this year.

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George Washington – “I did!”

February 22, 2021 6:01 pm Robert Zimmerman

An evening pause: On this, the birthday of George Washington, let us hear from the man himself. The speaker is an actor, but the words are Washington’s late in his life, reflecting on his life as well as on the future of the nation he more than anyone else helped create.

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Movie of Perseverance’s descent and landing

February 22, 2021 1:07 pm Robert Zimmerman

Cool movie time! The science team for Perseverance today released movie footage obtained by the rover as it descended and landed on Mars in Jezero Crater. That video is embedded below.

If you compare what this movie sees with the orbital images from Mars Reconnaissance Orbiter (MRO) that I posted earlier today, you can recognize the features in the crater and anticipate exactly where the rover is going to land.

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The COVID epidemic really IS ending

February 22, 2021 12:27 pm Robert Zimmerman

CDC infection detections of COVID
CDC graph

Though we all know that our fear-driven society and its power-hungry leaders will refuse to recognize this reality in order to permit life to return to a sane normality, the evidence now shows that the ’20-’21 winter season of COVID is now ending.

The big news is that there has been a drastic decline in reported infections since the beginning of the year.

According to the CDC COVID Data Tracker, there were 283,640 new cases on January 2, 2021. As of February 17, there were 69,165 cases. That represents a drop of 75.05 percent in six weeks — for all you fact-checkers out there.

First, we must recognize that the high numbers this season that seem to dwarf last year are caused largely by the increased effort to test everyone. The numbers also do not indicate COVID cases (where someone is sick from the disease) but include everyone who was tested and found positive, even if they were not sick at all. To call all positive detections as COVID cases is dishonest, and would have never been done in the past. Sadly, the idea of honest reporting has long disappeared.

Second, we must remember that these numbers are likely also inflated because it is financially advantageous for medical officials to report a coronavirus detection, even if it has not been clearly established. There has also been an effort to distort the numbers to make them seem worse than they are.

Finally, most news sources have been combining the statistics from last year’s COVID season with this year’s in order to inflate the numbers. This is bad reporting. The proper thing to do is to report them as separate seasons. If you did this you find that the numbers make the coronavirus not much different than the Hong Kong flu, when adjusted for population. It might be worse, but not unduly so.

For COVID, separating its annual seasons has been made more little difficult because the lockdowns and the insistence that everyone wear masks (almost all of which were worn improperly) I think caused a second unprecedented COVID summer season. That summer rise would likely not have happened if we had allowed people to behave normally in the summer weather, when such respiratory illnesses fade. Instead, everyone wore unsanitary masks that they touched constantly (increasing the changes they were exposed to the pathogen) while confining them indoors where such viruses prosper.

Regardless, the data strongly suggests this year’s coronavirus season is waning, as always happens with such respiratory diseases with the coming of spring. And certainly the arrival of vaccines against COVID is contributing to this decline as well.

All good news. Are you ready to cheer, or will you find ways to see only the half-filled part of the glass?

Nor is this news all. Two more stories in the past few weeks now give us a far better and hopeful sense of the disease’s scope and future.
» Read more

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Today’s blacklisted American: Amazon blacklists book for criticizing transgender movement

February 22, 2021 11:25 am Robert Zimmerman

They’re coming for you next: Amazon has removed a book from its inventory simply because it is critical of the movement by cross-dressers to be allowed to identify with the opposite sex, even when their sex remains entirely unchanged.

Amazon removed the bestselling book “When Harry Became Sally: Responding To The Transgender Moment” from its online store on Sunday, the book’s author announced.

Published in 2018 by then-Heritage Foundation research fellow and now-Ethics and Public Policy Center President Ryan T. Anderson, the book was an immediate bestseller, even on Amazon, according to the Washington Post. However, the online shopping giant removed the book on Sunday, Anderson tweeted. “I hope you’ve already bought your copy, cause Amazon just removed my book ‘When Harry Became Sally: Responding to the Transgender Moment’ from their cyber shelves…. my other four books are still available (for now).

Amazon links to both the hard copy and Kindle e-book versions of the book show “page not found” signs. (RELATED: Parler Relaunches After Amazon Removes It)

Amazon did not immediately respond to the Daily Caller’s request for comment.

I fear this is the future for all conservative books or any books that the modern bigoted left dislikes. Including my own. I therefore beg my readers to buy books from other booksellers, including my ebook publisher ebookit. We need to bypass blacklisters like Amazon.

Note too that I will not play the fake language game of this “transgender” movement. Just because you claim you are woman does not make you one. If a guy likes to wear women’s clothes that is his privilege. He is still a guy, however, and I won’t call him a “she” just because he demands I do so.

It is for this reason that I fear my books will soon disappear from outlets like Amazon. So be it. I will not submit to stupidity, bigotry, and the distortion of our language.

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New 3D atlas of all binary stars within 3,000 light years of Sun

February 22, 2021 9:45 am Robert Zimmerman

Using data from Europe’s Gaia satellite, astronomers have now compiled a 3D map of every binary star within 3,000 light years of the the Sun — 1.3 million — including many widely spaced binaries that were previously not identified.

The one-of-a-kind atlas, created by Kareem El-Badry, an astrophysics Ph.D. student from the University of California, Berkeley, should be a boon for those who study binary stars — which make up at least half of all sunlike stars — and white dwarfs, exoplanets and stellar evolution, in general. Before Gaia, the last compilation of nearby binary stars, assembled using data from the now-defunct Hipparcos satellite, included about 200 likely pairs. “This is just a massive increase in sample size,” said El-Badry. “And it is an increase in what kinds of evolutionary phases we find the binaries in. In our sample, we have 17,000 white dwarfs alone. This is a much bigger census.”

The data has also shown that the bulk of these binaries are made up of twins, stars similar in mass, something that is surprising and as yet unexplained, especially for binaries where the stars are widely separated.

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All systems on Perseverance so far check out good

February 22, 2021 9:30 am Robert Zimmerman

The Perseverance science team reported this past weekend that all systems on the rover have so far reported back and are operating as expected, including the test helicopter Ingenuity.

Some more images were sent back, all visible at the Perseverance raw image website. The most spectacular new image of Perseverance released however was one taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and posted below.
» Read more

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Update on Starship: Flight of prototype #10 possible this week

February 22, 2021 8:53 am Robert Zimmerman

Link here. Lots of stuff going on, with Starship prototypes 15 through 19 being assembled and waiting n the wings. Crews have also repaved and expanded the landing pad at Boca Chica, and begun assembling the first Super Heavy prototype.

The most significant tidbit to me was this:

One section inside a production tent appears to be undergoing preparations to cover the entire windward side in [thermal patches].

This unnamed section could indicate a vehicle that will be taken to an altitude that would test its heat shield under re-entry conditions. Current [thermal] patches are mostly being tested to see how they perform during the stresses of cryogenic propellant loading and launch and landing vibrations.

It is not known yet to which prototype this section belongs to, but that it is being prepared means that SpaceX is moving relentless towards that first orbital flight.

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Ham picks up signal from China’s Tianwen-1 Mars orbiter

February 21, 2021 5:58 pm Robert Zimmerman

An amateur ham radio operator announced on February 10th that he has been able to pick up a radio transmission from China’s Tianwen-1 Mars orbiter.

As reported on Spaceweather.com, Canadian radio amateur Scott Tilley, VE7TIL, has snagged another signal from deep space. His latest conquest has been to copy the signal from China’s Tianwen-1 (pronounced “tee-EN-ven”) probe, which went into orbit around Mars on February 10. Tilley told Spaceweather.com that the probe’s X-band signal was “loud and audible.”

“It was a treasure hunt,” Tilley told Spaceweather.com. He explained that while the spacecraft did post its frequency with the International Telecommunication Union (ITU), it was too vague for precise tuning (X band is between 8 GHz and 12 GHz).

What makes this detection especially interesting is that it indicates the possibility that in the somewhat near future some ham might actually be able to win the Elser-Mathes Cup. According to this article [pdf] from the national ham radio magazine QST, by the late 1920s there was a desire to create a new challenge for hams, as by then they had managed to devise methods for communicating across the entire globe.

Amid this disillusionment, [Colonel Fred Johnson Elser] visited ARRL [the national ham radio organization] and had the pleasure of meeting League co-founder and first president Hiram Percy Maxim, whose many interests included Mars. Elser reported that Maxim even owned a globe of the planet, with all of its known features demarcated.

Elser returned to his home in Manila and befriended Stanley Mathes, a Lieutenant Commander in the Navy who had been stationed in the Philippines. Based on their shared belief that Amateur Radio technology would improve at a prodigious rate, Elser and Mathes devised an award for the most ambitious Amateur Radio contact they could imagine. In honor of Hiram Percy Maxim’s love of the Red Planet, Elser and Mathes established the Elser-Mathes Cup, to be awarded for the “First Amateur Radio Two-Way Communication Earth & Mars.”

That cup has remained unclaimed since it was established in 1929, more than ninety years. The detection by Tilley above using ham equipment suggests that a winner might soon be able to lay claim to the cup. However,

Fred Elser and Stanley Mathes stipulated that the contact must be two-way, and that the transmission on the Mars end of the contact cannot be generated by a “robot.” Until we can put a ham on Mars, the Elser-Mathes Cup will go unclaimed.

As almost all astronauts are also hams, all that must happen is for an astronaut to get to Mars, land, and communicate back to Earth using ham equipment. While this will not happen soon, the possibility it will happen in the not-too-distant future is finally becoming a reality. Stay tuned.

Hat tip to ham Don Huddler N4RRT.

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Giant Antarctic iceberg disintegrates, missing South Georgia Island

February 21, 2021 5:31 pm Robert Zimmerman

NASA photo of disintergrating iceberg

Chicken Little was wrong again! The giant Antarctic iceberg, that some scientists were terrified would crash into South Georgia Island and harm the wildlife that lives there, has done exactly what every other iceberg has done since scientists began tracking them by satellite, disintegrate and float around the island, doing it no harm at all.

The NASA satellite photo to the right shows the situation on February 11, 2021. In November the iceberg was almost exactly the same shape and size as South Georgia island, and was heading right for it. (See the graphics from my earlier post.) At that time there were cries of impended disaster from our typically panicky and fear-driven scientists of the environmental community, claiming that the berg might become grounded against the island to do harm to the wildlife there, even though thousands of bergs of all sizes have all routinely floated around the island harmlessly.

Since then the iceberg has broken up and (surprise!) floated around the island harmlessly, as shown by the satellite photo. The doomsayers were wrong again, as they are and have been routinely for decades.

Considering the terrible track record of predictions by the environmental movement, you’d think people would stop buying into its cries that the sky is falling, but sadly they still do, and apparently will continue to do so for the foreseeable future.

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Roscosmos head: Russia to launch 29 rockets in ’21

February 21, 2021 5:10 pm Robert Zimmerman

Dmitry Rogozin, the head of Russia’s space agency Roscosmos, announced yesterday that they expect to complete 29 launches in 2021.

These numbers include all Russia’s launches, including the ones done for Arianespace in French Guiana. In my regular launch updates I don’t count those as Russian launches, as they are run and controlled by Arianespace, under Arianespace contracts.

Nonetheless, there should be an increase in the number of Russian launches in ’21, as they should resume OneWeb launches that were halted last year due to that company going into bankruptcy and then recovering. That bankruptcy meant that Russia’s total launches last year were less than half what they predicted.

The increase in ’21 does not mean Russia will successfully complete 29 launches. Rogozin and Roscosmos have for years routinely overstated their goals, and I think they are doing so again. I expect Russia to complete around 20-25 launches by the end of the year. If they top 25 it would make ’21 their best year since ’15.

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Northrop Grumman successfully launches Cygnus to ISS

February 20, 2021 10:46 am Robert Zimmerman

Northrop Grumman successfully used its Antares rocket to launch its Cygnus freighter to ISS today.

The capsule will dock with ISS in two days.

The 2021 launch race:

5 SpaceX
3 China
2 Russia
1 Rocket Lab
1 Virgin Orbit
1 Northrop Grumman

The U.S. now leads China 8 to 3 in the national rankings.

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Optical Illusion Dance

February 19, 2021 6:01 pm Robert Zimmerman

An evening pause: It is almost impossible to see this as it really is.

The song, Tanz, was written by a German named Hiss. Though the music sounds Cajun, its roots are German.

Hat tip Jim Mallamace.

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Bypassing the blacklist: Robert Pratt’s new podcast

February 19, 2021 3:23 pm Robert Zimmerman

Just over a month ago long time and very successful talk radio host Robert Pratt found himself suddenly fired by the corporation that managed the Texas radio stations where his show aired.

By all measures, it appeared the reason for the cancellation of his show was because he happened to be conservative and had dared report on the numerous creditable allegations of vote tampering during the November 3rd elections.

His firing ended up to be one of the first of my daily “Today’s Blacklisted American” posts, and in fact inspired the series.

Pratt however is, like me, not one to take oppression or blacklisting sitting down. He has now begun a regular podcast, and had me on as a guest today. We did several different podcasts, two of which are now available. The first on the landing Perseverance is part of a longer podcast and is available here. In the second, available here, we talked at length about the passing of Rush Limbaugh and his significance in American history.

A third podcast, on the modern culture of blacklisting will be posted next week.

Pratt is doing what I have done for years. When blocked by petty tyrants and close-minded thugs, you find an alternative route to reach your audience, and use it. You don’t simply complain, you make those jack-booted bullies squirm because their attempt to silence you is a failure.

All power to Robert Pratt. As a podcast his reach could actually be larger than when his broadcasts were confined to local Texas radio stations. And wouldn’t that be sweet?

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Partly ice-filled Martian crater?

February 19, 2021 12:57 pm Robert Zimmerman

Click for full image.

Time for another cool Martian image. The photo to the right, rotated, cropped, and reduced to post here, was taken on January 3, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The section I have focused on is a single crater about a mile and a half wide.

What makes this crater interesting is the material that appears piled up against the crater’s northern half. Furthermore, both the floor of the crater as well as this piled up material looks like it is eroding away, kind of like a block of ice which is having warm water sprayed on it.

So, is this glacial ice?
» Read more

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Today’s blacklisted Americans: Any lawyer who defended Trump

February 19, 2021 12:09 pm Robert Zimmerman

They’re coming for you next: Two lawyers — who did what any good lawyer should do when they accepted the job of defending Donald Trump during the recent Democratic Party impeachment show trial — have now found themselves subjected to harassment, death threats, and blacklisting with the loss of work.

First there is attorney Michael van der Leen. His house was vandalized with smashed windows and ugly slogans painted on the driveway after he spoke as defense attorney for Trump during the impeachment.

Because of the violence and threats, van der Leen has been forced to hire armed guards and move his wife and children to a secret location.

Equally egregious treatment has been handed out to Trump attorney David Schoen:

An attorney who represented President Donald Trump during the recent impeachment trial says a law school canceled a civil rights law course he was going to teach and he was suspended from a civil rights lawyer email discussion list.

“I was hoping to teach a civil rights course at a law school in the fall. We’ve been in talks about it, kind of planning it out. I wrote to them and I said, ‘I want you to know, I’m gonna be representing Donald Trump in the impeachment case. I don’t know if that impacts on your decision at all,’” David Schoen, one of the three attorneys who argued before the Senate, told The Epoch Times.

“And they said, you know, they appreciated my writing and, frankly, it would make some students and faculty uncomfortable, so I couldn’t do it.

There once was a time that the left in America trumpeted the importance of every American having the right to an attorney. Now, not so much. If you are accused of badness by the left, you are required to accept that accusation as true without a fight, and anyone who dares comes forward to defend you has joined you in that badness and must therefore be destroyed as well.

Or to put it another way, to the left you are no longer innocent until proven guilty. If they accuse you of something, you are automatically guilty, and no trial is needed. And anyone who disagrees is automatically guilty as well, and must be hounded and blackballed.

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Bloomberg editorial: Scrap SLS!

February 19, 2021 8:38 am Robert Zimmerman

I wonder who has said this before? In a scathing Bloomberg editorial yesterday, the news service called for President Biden to scrap the Space Launch System (SLS) and let private enterprise do the job instead.

The editorial’s opening sentence will sound very familiar to regular readers at this website:

Why is the U.S. government building a space rocket? In particular, why is it building a space rocket that has cost nearly $20 billion and counting, is years behind schedule, relies on outdated technology, suffers by comparison to private-sector alternatives, and has little justification to begin with?

That a major leftwing news source is beginning to endorse private enterprise and lambast SLS is a further sign that the political winds are blowing hard against this giant wasteful boondoggle. Should anything at all go wrong in its upcoming test schedule expect to see more such calls, coming from even more unlikely and unexpected places.

The lumbering thick-headed Washington political community is beginning to finally move towards the right conclusion, only a decade late.

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February 18, 2021 Zimmerman/Batchelor podcast

February 18, 2021 10:33 pm Robert Zimmerman

Embedded below the fold in two parts.
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Iron Butterfly – In a Gadda Da Vida

February 18, 2021 6:01 pm Robert Zimmerman

An evening pause: Hat tip Mike Nelson, who adds this tidbit of the song’s history:

The lyrics are about Adam and Eve living “In the Garden of Eden” but Doug Ingles, the composer, consumed an entire gallon of wine the night he wrote it, and when he sang it to a bandmate to transcribe the lyrics he slurred words so badly it got transcribed as In-A-Gadda-Da-Vida instead, which in the end stuck.

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Perseverance has successfully landed

February 18, 2021 2:07 pm Robert Zimmerman

Cheers in the control room

First image from Perseverance on the ground

The rover Perseverance has successfully landed in Jezero Crater on Mars.

The picture to the right is a screen capture of everyone cheering in the control room on hearing the good news.

The second image is the first image beamed back, from the rover’s hazard camera used mostly for guiding it in future travels. The haze is from the dust kicked up during landing.

The engineering narrator indicated that they also know exactly where the rover landed, and it is a good location, but NASA’s live stream appears uninterested in telling us this critical information. Right now they are spending time blathering on with more NASA propaganda.

I should get this information during the post-landing press conference, which begins at 5:30 (Eastern).

UPDATE: The press conference started 30 minutes late, and then spent the first 25 minutes letting the top NASA managers claim credit for everything. Then we finally got to hear from actual mission managers to tell us where the rover landed and what should happen next.
» Read more

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Today’s blacklisted American: The sci-fi publishing company Baen Books

February 18, 2021 11:11 am Robert Zimmerman

They’re coming for you next: Because of a single hit piece falsely claiming that a forum run by the long-established science fiction publishing company Baen Books was “fomenting insurrection” (the new buzzword of the brainless left being used to silence dissent), the publisher’s web-based operations were threatened with shutdown.

As a result Baen was forced to close-down, it says temporarily, that forum.

Yesterday some nobody, wannabe writer, social justice twit released a hit piece “expose” about how posters on Baen’s Bar were fomenting insurrection or some such nonsense. It was the usual [expletive deleted] hit piece (the sad part is, by saying the usual, half the country immediately knows exactly what I’m talking about). It was lots of pearl clutching over regular people not toeing their arbitrary political lines, misquotes, errors, quotes taken out of context, and some flat out lies.

However, this was clearly part of a coordinated attack in order to materially harm our business, because immediately after the hit piece was released complaints were filed with the various internet companies Baen uses for services to pressure them into kicking us off the internet. This hit piece was presented as “evidence”. Without going into details the companies then contacted Baen about these “serious allegations” so last night Baen temporarily took down the Bar forum to protect the rest of the company from being deplatformed.

The link provides lots of background, including the publisher’s response and statements of support from a number of published authors from across the political spectrum.

The internet companies who immediately kow-towed to these storm-troopers and threatened Baen Books deserve nothing but contempt. If they were truly American, they would have told the complainants to go jump in a lake. Don’t like what people are writing in the Baen forum? Either join the conversation and refute what they are writing, or go somewhere else. Don’t try to blackball someone just because you disagree with them.

Instead, these corporate internet platforms joined the two-minute hate and threatened Baen with blacklisting. To my mind the people at those platforms are not Americans, but narrow-minded petty dictators who either like oppressing people who disagree with them or live in constant cowardly fear which requires them to join the mob when it seeks violent retribution.

We need to know who these internet platforms are. Now. This will allow free Americans to begin searching for alternatives.

And if we don’t get those alternatives we will soon face a situation where any complaint against a publisher will lead to that publisher being shut down and its books flushed down the toilet, simply because someone doesn’t like them.

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Eroded mound in Mars’ glacier country

February 18, 2021 9:45 am Robert Zimmerman

Click for full image.

Cool image time! The image to the right, reduced to post here, was a captioned release today by the science team of the high resolution camera on Mars Reconnaissance Orbiter (MRO). It is located in Deuteronilus Mensae, a region of chaos terrain in the transition zone between the northern lowland plains and the southern cratered highlands that is also part of a 2,000 mile-long band that I call Mars’ glacier country. From the caption, written by Dan Berman, senior scientist at the Planetary Science Institute in Arizona:

Lobate debris aprons are commonly found surrounding dissected plateaus in the Deuteronilus Mensae region of Mars. They have been interpreted as debris-covered glaciers and radar data have shown their interiors to be composed of pure ice.

The mound in this image is slightly removed from most of the other plateaus, and the [debris apron] surrounding it is highly degraded. The sharp scarps on the western and eastern sides of the mound indicate that a great deal of the ice once found in these landforms has since sublimated away, leaving behind these collapsed debris cliffs.

I wonder if further research might find an ice layer in those cliff walls, especially because this photo strongly suggests that much of this mound is made of ice that is sublimating away or has flowed downward to form the debris aprons as well as that central gully.

The overview map below shows its location in Deuteronilus Mensae as well as showing almost all of the entire band of Mars’ glacier country.
» Read more

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Perseverance’s possible travel route on Mars

February 18, 2021 9:06 am Robert Zimmerman

Click for full image.

In touting the plans of NASA and the European Space Agency (ESA) to someday launch a rover to Jezero Crater designed to pick up the cached samples that Perseverance is going to leave behind, NASA today published the map to the right, showing Perseverance’s planned driving routes in the crater, on the large delta that poured into the crater in the past, and beyond that crater.

The yellow lines indicate Perseverance’s planned route, beginning somewhere in that red landing ellipse. The green lines indicated the many proposed landing sites and pathways the proposed follow-on sample retrieval mission can take to grab Perseverance samples.

The planned route looks like they will spend a lot of time exploring the top of delta, then will move out of the crater and to the southwest towards what had been another candidate landing site for Perseverance, now dubbed the Midway ellipse.

What route the science team will eventually take at the delta depends greatly on exactly where Perseverance lands today. We will know more in only a few hours.

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Texas power outages delay Starliner but not Starship

February 18, 2021 8:42 am Robert Zimmerman

Boeing announced yesterday that due to the winter storms and power outages in Texas it has delayed the second unmanned demo flight of its Starliner manned capsule from March 25 to no earlier than April 2nd.

Meanwhile, SpaceX’s Starship operation in Boca Chica, Texas has been proceeding practically unaffected by the power outages.

At the southernmost fringes of Texas, SpaceX’s Boca Chica Starship factory hasn’t been insulated from the chaos, though a large Tesla Solar and Energy installation has almost certainly lessened the blow. Highly cognizant of Boca Chica’s shortcomings for industrial-grade power needs, SpaceX installed that solar array and Tesla-made Powerpacks almost three years ago and substantially expanded it in 2020.

As a result, despite major issues posed by freezing weather and power grid instability, SpaceX has managed to keep the lights on and continue work at its Starship factory, while also slowly but surely preparing Starship serial number 10 (SN10) for its first static fire and high-altitude launch.

The weather is clearly slowing the Starship test schedule, but at least the work seems insulated from loss of power.

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February 17, 2021 Zimmerman/Batchelor podcast

February 17, 2021 11:25 pm Robert Zimmerman

Embedded below the fold in two parts.
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Bluegrass Large Family Band – Foggy Mtn. Rock

February 17, 2021 6:04 pm Robert Zimmerman

An evening pause: Hat tip Tom Biggar, who notes pointedly, “Must be something wrong with this – it looks like a bunch of deplorables having a good time.”

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A historian’s memorial to Rush Limbaugh

February 17, 2021 5:46 pm Robert Zimmerman

I originally posted the essay below a year ago when we first learned that Rush Limbaugh was seriously ill with lung cancer. With his passing today, I think it needs to be reread, with an addendum at the end.

A historian’s memorial to Rush Limbaugh (February 4, 2020)

It was very strange to me to hear yesterday’s sad announcement by Rush Limbaugh that he had been diagnosed with advanced lung cancer. In the last six months or so my mind had actually been contemplating the fact that Limbaugh had been doing his show for more than three decades, was in his late sixties, and was not immortal. I had been trying to imagine what it would be like when he was no longer a fixture in the daily news reporting cycle, and I had been failing. I couldn’t imagine it.

Now it appears we might all be finally facing it. As they say, reality bites.

For those who have listened to him regularly these past three decades, the loss will be immeasurable. Without question Rush Limbaugh has been the best political analyst, from a conservative perspective, for the past half century. You might disagree with his opinions, but no one has been as correct and as pertinent and as thoughtful, consistently getting to the heart of every political battle, and doing it in an amazingly entertaining manner.

I first heard Rush Limbaugh back in 1988, when I lived in New York and was starving for a different and refreshing perpective on the news.
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Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.