An evening pause: A short seven minute tour of the National Museum of the U.S. Air Force in Dayton, Ohio.
You will never see a museum in this manner. And as they go by, how many of these flying vehicles can you name?
Hat tip David Eastman.
Click for full image.
Cool image time! The photo to the left, rotated, cropped, and reduced to post here, was taken on June 23, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). I was attracted by the uncaptioned image’s title, “Elongating Linear Dunes at Meroe Patera.” What are elongating linear dunes?
The photo shows two such dunes, stretching out to the southwest away from the pile of sand that abuts the cliff to the northwest. Unlike most dunes, which usually form and travel in groups, these for some reason form single straight lines extending for some distance.
I contacted the scientist who requested this image, Joel Davis of the Natural History Museum in London, hoping he could answer some questions about these strangely shaped dunes, and discovered that he was studying this exact subject for a paper since published. As noted in the paper’s introduction,
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On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Capitalism in space: Having moved its fifth Starship prototype back to its facility at Boca Chica for repairs to its legs following its first light, SpaceX is simultaneously preparing its sixth Starship prototype for its own hops.
They plan more short hops to smooth out the launch process, aiming for the ability to do several per day, followed later by a much higher altitude hop. Expect the next hop within about two weeks.
An evening pause: This cover of Johnson’s song is by someone who for some reason doesn’t give his name on his youtube page. Blind Willie Johnson was a gospel singer from the 1920s who had been blinded as a child. If you want to hear him performing his magnificent guitar piece go here. There are no visuals, sadly, which is why I choose this cover, as it is I think important to see the playing to understand how brilliant the piece is.
Hat tip Mike Nelson, who in noting that Johnson’s recorded performance was one of the pieces of music included on the Voyager spacecraft the U.S. sent beyond the solar system, asks, “Is this the behavior of a “systemically” racist society?”
Now available in hardback and paperback as well as ebook!
From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.
“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.
All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.
Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.
One of the cables that supports the central platform above the Arecibo Observatory’s giant dish snapped yesterday, damaging the dish and shutting down operations.
The break occurred about 2:45 a.m. When the three-inch cable fell it also damaged about 6-8 panels in the Gregorian Dome and twisted the platform used to access the dome. It is not yet clear what caused the cable to break. “We have a team of experts assessing the situation,” says Francisco Cordova, the director of the observatory. “Our focus is assuring the safety of our staff, protecting the facilities and equipment, and restoring the facility to full operations as soon as possible, so it can continue to assist scientists around the world.”
The radio telescope has not much luck the past few years. It was badly damaged and shut down for a long time after Hurricane Maria in 2017, with repairs from that still on-going.
Click for full image.
Cool image time! The photo to the right, rotated and cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on April 10, 2020, and shows the edge of what scientists have dubbed Mars’s south polar layered deposits. The high point, towards the south, is at the bottom, and the terraced layers descend downward to the plains as you move up the image, to the north.
In essence, this spot is the edge of the southern ice cap, though unlike the north polar ice cap, this edge is not the edge of the visible ice cap, but the edge of a much larger field of layered deposits of mixed dust and ice. In the north the ice cap almost entirely covers these layered deposits. In the south the residual ice cap does not. Instead, the layered deposits extend out far beyond the smaller residual ice cap.
The map below provides the geography of the south pole, with the location of this image indicated by the blue cross.
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Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.
If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke
Having now imaged 75% of the entire night sky and completing its primary mission, scientists have now begun the extended mission for the Transiting Exoplanet Survey Satellite (TESS), designed to look for transiting exoplanets.
TESS monitors 24-by-96-degree strips of the sky called sectors for about a month using its four cameras. The mission spent its first year observing 13 sectors comprising the southern sky and then spent another year imaging the northern sky.
Now in its extended mission, TESS has turned around to resume surveying the south. In addition, the TESS team has introduced improvements to the way the satellite collects and processes data. Its cameras now capture a full image every 10 minutes, three times faster than during the primary mission. A new fast mode allows the brightness of thousands of stars to be measured every 20 seconds, along with the previous method of collecting these observations from tens of thousands of stars every two minutes. The faster measurements will allow TESS to better resolve brightness changes caused by stellar oscillations and to capture explosive flares from active stars in greater detail.
These changes will remain in place for the duration of the extended mission, which will be completed in September 2022. After spending a year imaging the southern sky, TESS will take another 15 months to collect additional observations in the north and to survey areas along the ecliptic – the plane of Earth’s orbit around the Sun – that the satellite has not yet imaged.
So far the telescope has spotted more than 2,100 exoplanet candidates, with 66 confirmed.
All told, TESS has divided the sky into 26 sectors, 13 in the north and 13 in the south. It can only look at one at a time for a month, and scientists use that one month data, collected more than once, to see if there are any changes. Because of the gaps in TESS’s view of each sector, however, it is guaranteed to miss some exoplanets (the majority) whose transits occur when it is not looking.
Imagine if we had 25 more of these space telescopes in orbit, so that each sector could be watched continually. This is totally doable now, and would make it possible to soon create a census of transiting exoplanets across the entire sky.
Link here. The author notes how his 21-year-old daughter tested positive for the Wuhan virus, exhibited no symptoms at any time, and yet finds now herself too often treated like a leper to be avoided in terror. He then provides a magnificent analysis of this disease’s true threat, which is practically nothing at all when put in proper perspective. Consider just this one example provided by him:
The CDC discloses in only six percent of all coronavirus deaths, “COVID was the only cause” mentioned. For the other ninety-four percent, “there were 2.6 additional conditions or causes per death.” There were 115,495 fatalities where patients got admitted to the hospital with “influenza and/or pneumonia.” Another 93,393 checked in with respiratory failure, while 35,167 arrived amid cardiac arrest. Yet hospital administrators sign COVID on death certificates one hundred percent of the time. Early on, Dr. Deborah Birx publicized the probability that medical facilities overstate numbers of actual coronavirus fatalities
Of U.S.165,000 casualties attributed to COVID, six percent translates that less than ten thousand fatalities were otherwise healthy.
He also notes this:
Over the past couple of weeks, the media, with lackey doctors Fauci and Gottlieb providing imprimatur, double down on hysteria as for several days, COVID cases spiked above 70,000. Even Republican governors cowed under pressure as many states slow or halt reopening economies. For perspective, for the six-month Oct-April 2020, CDC reports up to 56,000,000 seasonal flu cases. This calculates to over 300,000 per day. Currently, the official COVID count stands just over 5 million. Does anyone, ever, refer our annual flu “tradition” as a pandemic? During the recent case spike, deaths never got above 55 percent of the April peaks.
There’s lots more, if only people were willing to read it and put aside their false terror of this disease. Sadly, they are not. His accurate analysis will fall on deaf ears.
Capitalism in space: SpaceX is seeking to hire a manager to lead the design and construction of a resort near Boca Chica for future spaceport customers.
The job posting seeks a manger to “oversee the development of SpaceX’s first resort from inception to completion,” with the ultimate aim of turning Boca Chica into a “21st century Spaceport.” That would include overseeing the entire design and construction process, as well as getting all necessary work permits and regulatory approvals, and completing the ultimate build of the facility.
Makes perfect financial sense, assuming Starship does eventually fly. Customers will need and expect a nice place to stay before and after their flights, and SpaceX has the land and is best positioned for providing it. And even if Starship doesn’t fly, during the rocket’s development there is money to be made providing tourists the best viewpoint for watching test flights, while also creating a source of profit independent of actual flight.
The podcast Finding Genius with Richard Jacobs has now posted an hour-long interview he did of me about a week ago. It is available here.
Embedded below the fold in two parts.
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An evening pause: A father and daughter duet, only possible through the magic of modern technology.
Hat tip Jim Mallamace.
