Sam Cox – The Doodle House
An evening pause: Apparently it took two years to make this video, painting the house along the way. More information here.
Hat tip Cotour.
Year: 2022
December 8, 2022 Quick space links
Courtesy of Jay, BtB’s Twitter stringer.
- Engineers lose contact with ICON satellite on November 25, 2022
Right now the situation does not look hopeful. The satellite was studying the interaction of the Sun with the Earth’s ionosphere, and completed its prime two-year mission a year ago.
- Satellites now ready for December 13th Ariane 5 launch
The launch will put into orbit two communications satellites and a weather satellite (the subject of the tweet above.) With this launch, there will only be two Ariane 5 launches left on Arianespace’s manifest.
Webb’s infrared view of the Southern Ring Nebula
Click for original image.
The two images to the left were produced by the Webb Space Telescope, showing in false colors the Southern Ring Nebula as seen by two of Webb’s infrared cameras.
The two images shown here each combine near-infrared and mid-infrared data to isolate different components of the nebula. The image at [top] highlights the very hot gas that surrounds the central stars. The image at [bottom] traces the star’s scattered molecular outflows that have reached farther into the cosmos.
Based on the data, astronomers posit that up the system could have as many as five stars orbiting each other, with three as yet unseen, or the inner ones might no longer exist, having been absorbed by the bigger stars.
It’s possible more than one star interacted with the dimmer of the two central stars, which appears red in this image, before it created this jaw-dropping planetary nebula. The first star that “danced” with the party’s host created a light show, sending out jets of material in opposite directions. Before retiring, it gave the dim star a cloak of dust. Now much smaller, the same dancer might have merged with the dying star – or is now hidden in its glare.
A third partygoer may have gotten close to the central star multiple times. That star stirred up the jets ejected by the first companion, which helped create the wavy shapes we see today at the edges of the gas and dust. Not to be left out, a fourth star with an orbit projected to be much wider, also contributed to the celebration. It circled the scene, further stirring up the gas and dust, and generating the enormous system of rings seen outside the nebula. The fifth star is the best known – it’s the bright white-blue star visible in the images that continues to orbit predictably and calmly.
Much of this remains mere theory, based on the available data. Nonetheless, the data from many such planetary nebula continues to suggest their strange and wonderful shapes are created by multiple stars, acting as a mix-master to churn up the nebula’s dust.
SpaceX successfully launches 40 OneWeb satellites
SpaceX today used its Falcon 9 rocket to successfully launch 40 OneWeb satellites, joining with India to replace the launch services of Russia.
This was the first SpaceX launch for OneWeb. The first stage completed its fourth flight, landing back at SpaceX’s launchpad at Cape Canaveral. The fairings completed their fifth and sixth flights.
The leaders in the 2022 launch race:
55 China
55 SpaceX
21 Russia
9 Rocket Lab
8 ULA
The U.S. nowl leads China 79 to 55 in the national rankings, though it still trails the entire world combined 86 to 79.
Pushback: Professor wins big against Auburn for punishing him for his opinions
Freedom of speech considered bad at Auburn University!
Bring a gun to a knife fight: After his superiors fired him as chair of the economics department at Auburn University because he had criticized the university’s policy of passing scholarship athletes for doing no work, professor Michael Stern sued, and has now won a $645K court case.
You can read his complaint here [pdf], and the jury verdict here [pdf]. The case hinged on the decision of Joseph Aistrup, the former dean at the College of the Liberal Arts, to fire him as department chair in May 2018 because Stern had publicly raised questions about the high numbers of athletics majoring in “Public Administration,” a program that seemed designed to give them a free ride. This conflict began on February 4, 2014:
Auburn University’s Faculty Athletics Representative (“FAR”), Dr. Mary Boudreaux, put on a presentation in the University Senate wherein she claimed that there was no clustering of athletes by any major at Auburn. Plaintiff [Stern] questioned her in relation to the Public Administration program and football, given the contrasting information Plaintiff was told by a colleague. (During the 2013 Iron Bowl, Dr. Randy Beard (Economics professor and Plaintiffs colleague) noticed that almost all of the star players on the football team had Public Administration as a major).
Dr. Joseph Aistrup (new College of Liberal Arts Dean at the time) ran up to Plaintiff on the way out of the Faculty Senate. He looked green and like he was going to cry. He said, “Oh my God, Mike, I can’t believe you mentioned our program. I’m going to hear about this.”
What a Martian impact looks like on a sheet of slushy ice
Click for full image.
My headline is a bit of a guess, but it is an educated guess for today’s cool image. The photo to the right, cropped, reduced, and sharpened to post here, was taken on October 30, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).
The location, as indicated by the white dot in the overview map above, puts this impact in a relatively flat area of Deuteronilus Mensae, the westernmost chaos region of the 2,000 mile long mid-latitude strip I call glacier country.
In other words, there is likely a lot of near surface ice here, as this impact makes very plain. If you imagine dropping a pebble into a thick layer of soft ice cream, you might get a crater reminiscent of this. I use for comparison ice cream on Earth because the lighter Martian gravity probably makes Martian ice softer and more slushy.
As I have said many times before, Mars is strange, Mars is mysterious, and above all Mars is alien.
China’s possible plans for expanding Tiangong-3
Though the plans have apparently not been approved, the designers of China’s Tiangong-3 space station are now considering expanding the station with additional large modules.
“Following our current design, we can continue to launch an extension module to dock with the forward section of the space station, and the extension module can carry a new hub for docking with the subsequent space vehicles,” [Wang Xiang, commander of the space station system at the China Academy of Space Technology (CAST)] told CCTV following the return to Earth of the Shenzhou-14 crew Dec. 4.
With a new docking hub, the Chinese would actually have the potential of doubling the station’s size by duplicating its present configuration with one central module (with the hub) and two side modules.
The station’s design, an upgrade of the Soviet Union’s Mir station, also allows for relatively easy replacement of modules as they age. Though the station only has a planned ten-year life, do not be surprised if it remains operational for many decades beyond that.
Update on Starship/Superheavy testing at Boca Chica
Link here.
While work appears to be proceeding aggressively, it increasingly looks like no orbital launch will occur before the end of this year. SpaceX engineers appear to be preparing two different Superheavy prototypes, #7 and #9, but both are still undergoing modifications based on recent engine tests. In addition, modifications to Starship prototype #24 continue.
New gamma ray burst violates the explanations of scientists
The uncertainty of science: A newly discovered long gamma ray burst (GRB) that appears to have been formed by the merger of two neutron stars has contradicted the long held views of scientists as to the origin of this particular type of GRB.
Prior to the discovery of this burst, astronomers mostly thought that there were just two ways to produce a GRB. The collapse of a massive star just before it explodes in a supernova could make a long gamma-ray burst, lasting more than two seconds. Or a pair of dense stellar corpses called neutron stars could collide, merge and form a new black hole, releasing a short gamma-ray burst of two seconds or less.
But there had been some outliers. A surprisingly short GRB in 2020 seemed to come from a massive star’s implosion (SN: 8/2/21). And some long-duration GRBs dating back to 2006 lacked a supernova after the fact, raising questions about their origins. “We always knew there was an overlap,” says astrophysicist Chryssa Kouveliotou of George Washington University in Washington, D.C., who wrote the 1993 paper that introduced the two GRB categories, but was not involved in the new work. “There were some outliers which we did not know how to interpret.”
There’s no such mystery about GRB 211211A: The burst lasted more than 50 seconds and was clearly accompanied by a kilonova, the characteristic glow of new elements being forged after a neutron star smashup.
Kouveliotou’s claim is not how I remember things back in 1990s. Then, the astronomers seemed certain that the two GRB classes were entirely separate, with no overlap, despite the large number of uncertainties.
Sweden upgrading suborbital launchsite for orbital business
A Swedish launchsite that the European Space Agency (ESA) has used on and off for decades for suborbital test launches is now being upgraded to make it attractive to smallsat rocket companies.
Founded by the European Space Agency (ESA) in 1966 to study the atmosphere and Northern Lights phenomenon, the Esrange space center has invested heavily in its facilities in recent years to be able to send satellites into space.
At a huge new hangar big enough to house two 30-meter rockets currently under assembly elsewhere, Philip Pahlsson, head of the “New Esrange” project, pulls up a heavy blue door. Under the rosy twilight of this early afternoon, construction machines nearby can be seen busily completing work on three new launch pads. “Satellite launches will start to take place from here next year,” Pahlsson says.
In Europe, Esrange is competing with a new Norway spaceport for the first orbital rocket launch. It is also competing with two spaceports in Scotland. And the one that makes launches easy for the new smallsat rocket companies is going to garner the most business.
UK regulators block Virgin Orbit launch
We’re here to help you: Bureaucrats at the United Kingdom’s Civil Aviation Authority (CAA) have refused to issue Virgin Orbit a launch permit in time for its proposed December 14, 2022 launch date, and have thus forced the company to stand down.
Dan Hart, Virgin Orbit chief executive, said the Civil Aviation Authority’s refusal to give the company an operating licence meant the launch would be delayed again. Britain’s first ever space mission was scheduled to take place on the night of December 14, Virgin Orbit announced yesterday.
But Virgin Orbit was forced to row back on its plans within hours. The company will now “retarget launch for the coming weeks”.
The refusal does not mean that the launch will never happen, only that the CAA is not going to hurry its approval for Richard Branson. This delay is thus crushing this company, as it has been unable to launch other customers while this launch is pending, and therefore has been unable to earn any additional revenue.
That the CAA has been working on this permit for more than half a year and still cannot issue, however, does not bode well for future UK rocket launches. Virgin Orbit launches from a runway, using a 747, and has done so successfully four times already. If the CAA cannot figure out how to okay it to launch after doing six months of paperwork, how is it going to okay launches for regular rockets from the two Scotland launchpads now under construction? Based on this situation, it will take forever to get launches off, and thus the CAA is likely going to force satellite customers top migrate to other spaceports outside the UK.
December 7, 2022 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
To listen to all of John Batchelor’s podcasts, go here.
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