An evening pause: While figuring out why this works is really complicated, the simplicity of the technique and engineering is superb, and illustrates again why the U.S. did so well against Germany.
And yes, that is the voice of Mel Blanc.
Hat tip Jim Mallamace.
Click here, here, here, and here for full images.
Today’s cool image, to the right, takes us to the equatorial regions of Mars, a region that today appears quite arid and dry based on all the orbital and rover/lander data so far gathered. The photo and its complex geology however provides us a hint that once liquid water did exist here. At least, that is the hypothesis that scientists presently favor, though making it fit this complex geology is not simple or straightforward.
The mosaic to the right is made from four context camera images taken by Mars Reconnaissance Orbiter (MRO). It shows a very complicated series of depressions — one of which vaguely resembles a crater — that appear to have been washed out by some past erosion process, though that process could not have been that simple because of the fissures and cracks that dominate the floor of the circular feature.
I contacted Chris Okubo of the U.S. Geological Survey, who had requested a high resolution image from MRO of a small part of this mosaic, as indicated by the white box, to ask him what we are looking at. His answer was appropriately noncommittal:
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The Civil Rights Act of 1964: unilaterally repealed by Beliot College.
The new bigotry on American campuses: Beliot College in Wisconsin has decided to turn a former campus coffee shop into blacks-only haven, thus re-introducing Jim Crow segregation by treating blacks as a privileged race and all other ethnic groups and races as inferior and thus deserving of discrimination and second-class facilities.
In March, the private institution announced the Java Joint would be closed in order to become “a haven for Beloit College’s Black students.”
The gathering space was praised by Jada Daniel, the current Black Student Union president. “We hope to create a safe space for Black and Brown students, where we have a comfortable place to study,” said Daniel on the school’s website. “Daniel said BSU plans to host Soul Food Sundays, poetry readings, and other events during the year, following COVID safety guidelines,” the website says.
Meanwhile, when questions were raised about this clearly discriminatory policy, the school refused to comment, even as its own website said this:
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Capitalism in space: Sierra Space has signed an agreement with a spaceport in Cornwall, England, allowing it to land its Dream Chaser mini-shuttles there.
Sierra Space signed a memorandum of understanding (MOU) with Spaceport Cornwall expressing support for future landings of Dream Chaser at the spaceport, also known as Cornwall Newquay Airport in southwestern England.
The MOU came after Sierra Space performed a study, supported by the U.K. Space Agency, evaluating the feasibility of using the spaceport for Dream Chaser landings. The lifting body vehicle is designed to glide to a landing on runways, and the initial study concluded the spaceport is “a suitable and viable return location for the orbital return” for Dream Chaser, Sierra Space said in a statement.
The more places Sierra can land Dream Chaser the more commercially viable it will be. For Cornwall, this strengthens its position as a spaceport, having already signed an agreement with Virgin Orbit to allow it to launch from there.
Capitalism in space: Russia has announced a range of new tourist flight options to ISS in an effort to compete against the new commercial tourist flights being offered by American companies.
Glavkosmos is offering space tourists the option of performing spacewalks from the International Space Station (ISS) and stays of up to 30 days aboard the orbital laboratory. They can even purchase the Soyuz space capsule that took them to and from the station.
The company, which is part of Roscosmos, recently upgraded its website to provide details of what paying customers can do when they book a trip to the station. The information is available in Russian and English.
You can see the English website here. It does not indicate what the prices are for these services, though it will have to be competitive with what SpaceX is charging in order to compete.
Side note: This story is on Doug Messier’s site Parabolic Arc, which is presently running a fund-raising campaign. Please consider donating. While Doug and I might disagree on many things, his work covering commercial space remains among the best on line.
Capitalism in space: Work at SpaceX’s Boca Chica spaceport in Texas has now definitely shifted away from doing Starship short hops, focusing instead on the first near-orbital flight using both Starship and Superheavy.
Not only is almost all recent work at Boca Chica centered on building the orbital launchpad with its tower for Superheavy, the company has apparently decided to end development of Starship prototypes 15-19, designed for hops only.
The fate of Starship SN15, following its milestone success with a smooth test flight and landing last month, is still unknown. It is likely awaiting preparations to go on display at Starbase. It is already sitting on display stands.
SN16 continues to reside in the High Bay, all but ready for rollout to the suborbital pad. However, that appears increasingly unlikely, as SpaceX focuses on the upcoming orbital attempt from the launch site next door to where SN15 completed its momentous test.
SN17’s fate is known, with sections of what was to become that Starship now observed as being scrapped at the Production Site.
Meanwhile, SN20’s aft dome [intended for orbit] has also been spotted by Mary (@bocachicagal), sporting three mounts for RVacs, indicating SN20 may be the first Starship to fly with both sea level and vacuum optimized engines.
All signs continue to suggest that orbital test flight will occur before the end of the summer.
The new colonial movement: China yesterday moved to the launchpad the Long March 2F rocket it will use to launch the first three astronauts to occupy its new space station.
The first element of the complex, the Tianhe core module, launched April 28 aboard a heavy-lift Long March 5B rocket, China’s most powerful launch vehicle. An unpiloted cargo ship, named Tianzhou 2, launched May 29 and docked with the Tianhe core module eight hours later, delivering fuel, food and spacesuits for the Shenzhou 12 astronauts.
The Shenzhou 12 mission will last about three months, the longest stay in space to date by Chinese astronauts. Shenzhou 12 will be China’s seventh crewed spaceflight since 2003.
Chinese officials have not announced the launch date for the Shenzhou 12 mission, but rockets for China’s last three crewed spaceflights rolled to the pad at Jiuquan about a week before liftoff. That suggests the launch could occur around June 16 or June 17.
As this launch will be from a spaceport in the interior of China, it will dump its first stage boosters on land.
During that three month mission the three astronauts will likely do several spacewalks to deploy solar panels and other equipment on the exterior of the Tianhe module, preparing it for later modules as well as the next manned mission, scheduled for October and planned to last six months.
Click for interactive map.
Ingenuity yesterday successfully completed its 7th flight on Mars, heading south and landing exactly as planned.
Ingenuity lifted off around 12:34 local mean solar time on Tuesday, which corresponds to 11:54 a.m. EDT (1554 GMT). As planned, the chopper then traveled 348 feet (106 meters) south from its previous location on the floor of Mars’ Jezero Crater, staying aloft for nearly 63 seconds, JPL officials wrote in another tweet. The solar-powered rotorcraft set down at a new airfield, the fourth one it has reached since landing on the Red Planet with NASA’s Perseverance rover on Feb. 18.
Both the rover Perseverance and Ingenuity are traveling south on the floor of Jezero Crater, with the helicopter leapfrogging ahead every few weeks. On the map the red dot indicates Perseverance location, with the green dots Ingenuity’s last three landing sites. They have not yet added to the map exactly where Ingenuity landed yesterday (#7), so I have estimated it based on the information above.
The red outline indicates the region they are planning to explore over the next few months in order to gather a very thorough understanding of the geology of the floor of Jezero Crater. They will eventually head to the northwest towards the cliffs in the upper left, which is the foot of the large delta that flowed in the past into the crater through a gap in its western rim. The route they will take to get there however remains undetermined.
Embedded below the fold in two parts.
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An evening pause: This guy might not be the greatest guitar player or singer, but stay with it, the song and words I think make up for any lack in playing.
Hat tip Mike Nelson.
Click for full image.
Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on April 19, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Requested by Colin Dundas of the U.S. Geological Survey’s Astrogeology Science Center in Arizona, the image was entitled “Enigmatic Terrain in Elysium Planitia.” The image is labeled so because, as Dundas explained,
Flood lava is a key part of the feature, best seen at the north and south ends of the image. What’s unusual is the knobby terrain at the center. … I haven’t yet been able to do a more thorough study of these features, so plenty of puzzles remain!
The higher material in the upper right is likely flood lava. A 2016 paper [pdf] led by Dundas on similar features in Elysium Planitia that were not as knobby found their origin somewhat baffling. The evidence suggested that lava, mud, wind, and ice could all be involved in their formation, but the evidence was also not sufficient to eliminate any possibility.
In the case of today’s image, the explanation might also be any of these possibilities. For example, we might be looking at the erosion of the flood lava, exposing harder knobs of different material that had been there before and had been covered by the lava. Or maybe the knobs are simply the last bits of that layer of flood lava that has not yet eroded away.
As always, the overview map provides some context.
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Persecution is now cool! Despite a thirty year career as a published feminist condemning the male patriarchy of American society while also working in the campaigns of both Bill Clinton and Al Gore, leftist radical feminist Naomi Wolf has found herself banned permanently by Twitter for daring to write posts condemning the lockdowns and mandates of the past year, while also raising concerns about the vaccines being offered to prevent COVID-19.
Twitter booted Wolf shortly before she intends to release her new book, Step Ten, that will explain how COVID-19 is being used by elites to grease the skids toward authoritarian fascism. “A much-hyped medical crisis,” Wolf argues, “has taken on the role of being used as a pretext to strip us all of core freedoms.”
The ironies here are endless. First, Twitter’s ban literally proves Wolf’s point. That Twitter executives don’t see that further illustrates their intolerance.
Second, the irony of Wolf’s banning might actually be somewhat amusing if it weren’t so suppressive to free thought. » Read more
