Year: 2021

China targets 2024 for next lunar sample return mission

9:42 am

The new colonial movement: China’s next robotic lunar sample return mission, called Chang’e-6 and targeted for a 2024 launch, will also attempt to bring back the first samples from the far side of the Moon.

Hu Hao, chief engineer of the China Lunar Exploration and Space Engineering Center, announced in a statement released on China’s national space day in April this year that the Chang’e 6 probe, consisting of an orbiter, lander, lunar ascent vehicle and reentry capsule, will target the South Pole-Aitken (SPA) basin.The SPA basin is a colossal, ancient impact crater roughly 1,550 miles (2,500 kilometers) in diameter that covers almost a quarter of the moon’s far side. The impact basin, considered to be the oldest on the moon, holds vital clues about the history of the moon and the solar system, according to a new report.

The precise spot for landing has not been revealed. Since the basin is so large and covers the Moon’s south pole, the mission could land in that region where ice is thought to possibly exist in the permanently shadowed floors of some craters. Whether they would attempt a landing in one of those craters is presently unknown, though unlikely because of the technical challenge.

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FAA initiates new prelaunch air space clearance system

9:33 am

FAA has now begun using a new prelaunch air space clearance system that is intended to shorten the time airplane travel is disturbed by the scheduled launch of a rocket.

[The FAA] developed the Space Data Integrator (SDI) tool to reduce how long ATO must close airspace around space launches and reentries. The system is voluntary. SpaceX, Blue Origin, Firefly, and the Alaska Aerospace Corporation are current partners. SDI was first used operationally for SpaceX’s Transporter-2 launch last week and is being used for the SpaceX-22 Cargo Dragon reentry today.

…Space operators now are voluntarily sharing telemetry data including vehicle position, altitude and speed, as well as data if the vehicle deviates from its expected flight path. Asked when additional companies might join, Monteith said he would have to defer to ATO to answer that question.

…Using the automated SDI system coupled with “time-based procedures and dynamic windows,” the FAA expects to be able to shorten airspace closures “from an average of more than four hours per launch to just more than two hours” and eventually less.

The article makes no mention whether this new system will allow the FAA to shrink the closure areas as well, which was Elon Musk’s main complaint after SpaceX’s Transporter-2 launch near the end of June was scrubbed seconds before launch when a helicopter slipped into that airspace. As Musk wrote in a tweet,

Unfortunately, launch is called off for today, as an aircraft entered the “keep out zone”, which is unreasonably gigantic. There is simply no way that humanity can become a spacefaring civilization without major regulatory reform. The current regulatory system is broken.

I suspect there is discussion to reduce the size of the closure areas, but I also suspect that the FAA is resisting industry calls to do so.

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Curiosity looks across at the alien landscape of Gale Crater

2:25 pm

Curiosity's view across Gale Crater
Click for full image.

Most of the images from Curiosity that I have posted recently have been of the spectacular mountain scenery looking south at Mount Sharp itself. Today’s cool image, taken on July 6, 2021 by the rover’s right navigation camera and cropped to post here, instead looks north, out across the floor of Gale Crater to its distant rim about twenty miles away.

The rover is likely not to move for a week or so, as it has just completed drilling its first drillhole since it moved up into the next geological layer, dubbed the sulfate unit. Because of this they have been using the rover’s cameras to take a lot of pictures of the surrounding terrain, including several high resolution mosaics.

The two overview maps below show what the cool image above is looking at.
» Read more

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Engineers successful complete simulation of Hubble repair

12:30 pm

Though the details released are sparse, engineers working to get the Hubble Space Telescope back in operation since it shut down due to a computer problem in mid-June report today that they have successfully completed a simulation of the procedures they need to do to fix the problem.

This is their entire report:

[The engineers] successfully completed a test of procedures that would be used to switch to backup hardware on Hubble in response to the payload computer problem. This switch could occur next week after further preparations and reviews.

Apparently, because the switch to backup hardware requires switching more than one unit, the sequence is important and following it correctly is critical. It appears they have now determined the correct sequence and will attempt it on Hubble next week.

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Today’s blacklisted American: Facebook to punish users who link to peer-reviewed science it dislikes

12:21 pm

Modern science!
How Facebook applies science.

Blacklists are back and Facebook’s got ’em! Facebook is now warning its users that it will punish them if they repeatedly link to peer-reviewed science papers that document the long known harmful effects from improper mask use.

Facebook is warning users against sharing a study that found dangerously high carbon-dioxide intake in masked schoolchildren, published in the Journal of the American Medical Association (JAMA) Pediatrics. “Pages and websites that repeatedly publish or share false news will see their overall distribution reduced and be restricted in other ways,” the warning says when users paste the link on Facebook, before confirming they want to share it.

It’s giving the same warning and threat of account restrictions to users who paste a link to Townhall.com article on a University of Florida lab that found dangerous pathogens on children’s face masks, submitted for testing by their parents. [emphasis mine]

Apparently, Facebook’s “‘fact-check’ simply highlight[ed] disagreements between the scientist who conducted the test and other scientists who did not conduct the test. … Instead of acknowledging that more study would resolve the dispute, [Facebook] call[ed] the report false. That’s not science — that’s propaganda.”

The second study about the number of very bad pathogens that gather on masks used during a single day was already discussed by me in an earlier post. That study found that after a single day of use,
» Read more

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Problems with Blue Origin’s engine force more delays of ULA’s new Vulcan rocket

10:28 am

In a detailed and very informative review of the partnership between ULA and Blue Origin yesterday, Eric Berger at Ars Technica noted these unfolding facts:

For years, United Launch Alliance chief executive Tory Bruno had been saying the new Vulcan rocket, powered by two [Blue Origin] BE-4 engines, would launch in 2021. However, he recently told Aviation Week the first launch would slip into 2022. Bruno said this was due primarily to the mission’s customer, Astrobotic, whose Moon lander was not ready. Technically, Bruno said, Vulcan still had a chance to be ready for a 2021 launch.

This seems highly unlikely because it is already July, and United Launch Alliance (ULA) still does not have a pair of flight engines. After receiving the flight engines from Blue Origin, ULA needs to attach them to the Vulcan rocket, roll it to the launch pad, and conduct a lengthy series of tests before a hot-fire ignition. After this hot-fire test, the rocket will be rolled back to the hangar and prepared for an actual launch attempt. As of January, Bruno was saying this hot fire test with the flight engines would take place this summer. That will no longer happen.

In December both companies promised delivery of those flight engines by this summer, but so far nothing has arrived. Moreover, both companies have remained very tight-lipped about the cause of the most recent delays. In October 2020 Bruno said that an issue with the engine’s turbopumps had been identified and fixed, but if so why has the engine not arrived as promised?

A GAO report released last month had described issues with the engine’s “igniter and booster capabilities,” but Bruno himself has denied the igniter was a problem.

Regardless, Blue Origin’s inability to deliver this engine is causing problems at both companies. Both have been forced to delay the launch of their new orbital rockets. Both rockets were initially scheduled to launch in 2020, were delayed to 2021 about two years ago, and now are likely not to launch until 2022.

While ULA can still switch to its Atlas 5 rocket for some planned Vulcan launches (and has already done so), that rocket is more expensive and thus eats into the company’s profit margin. Using the more expensive Atlas 5 in bidding also makes it more difficult for ULA to compete with SpaceX in any head-to-head competition.

Blue Origin does not even have this option. Its proposed New Glenn rocket is grounded until it gets its engine operational.

All told, the failure of Blue Origin to deliver here is essentially grounding all of SpaceX’s potential American competition, a situation that is not healthy for the American rocket industry.

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Update on Ingenuity’s 9th flight

9:55 am

Ingenuity's 9th flight
Click for interactive map

Ingenuity’s engineering team late yesterday posted an update on the helicopter’s successful 9th flight on July 5th, describing in detail the changes they made to their software that made the challenging flight possible.

The changes were required because the helicopter flew for the first time over much rougher terrain then initially planned, as shown by the map to the right.

Flight 9 was not like the flights that came before it. It broke our records for flight duration and cruise speed, and it nearly quadrupled the distance flown between two airfields. But what really set the flight apart was the terrain that Ingenuity had to negotiate during its 2 minutes and 46 seconds in the air – an area called “Séítah” that would be difficult to traverse with a ground vehicle like the Perseverance rover. This flight was also explicitly designed to have science value by providing the first close view of major science targets that the rover will not reach for quite some time.

In other words, Ingenuity flew for the first time over terrain that Perseverance cannot drive to, recording images from above of surface features beyond the rover’s range.

We began by dipping into what looks like a heavily eroded crater, then continued to descend over sloped and undulating terrain before climbing again to emerge on a flat plain to the southwest.

The images of that rough terrain have not yet been downloaded to Earth, but will be in the next week.

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Loudon Wainwright – One-man Guy

6:01 pm

An evening pause: I first posted this as a pause back in 2012. Time to post it again, as I empathize with Wainwright even more now than then.

We all travel a path in life. Once Americans celebrated those who chose an independent and unique path. That no longer appears true, not that it would make any difference to Wainwright, or to me. For some, to chose a unique path and be true to yourself is the only option.

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Enrollment in public schools plunges

2:42 pm

Good news! Federal government data for the 2020-2021 school year shows a steep drop in enrollment in public schools, with the biggest declines in the youngest grades.

While overall the drop was only 3%, the drop was stunning from parents enrolling their children for the first time.

Even more stark is the drop in enrollment among younger students. Preschool enrollment fell by 22%, and preschool and kindergarten enrollment combined dropped 13%.

The drop is even more significant in that it is really the first such decline in decades.

It appears that almost one in four parents have decided that public schools are not a good place for their little ones. Foolish mask mandates, absurd social distancing rules, and leftist propaganda promoting bigotry and sexual perversity are not what they want for their kids.

In a sane world, we would quickly see a reduction in the budgets for these public schools. Sadly this is not likely. Too many local politicians are under the thumb of the teacher unions, and serve them, not their constituents.

In the end however these budgets must be cut, if not entirely zeroed out. As long as the money keeps flowing to these corrupt institutions, they will have power and will use it for bad ends.

Let me add one more point: Considering the horrible state of the public schools, their mistreatment of children in connection with COVID, their failure to teach anything well in the past few decades, their new endorsement of racial bigotry and hatred, and their increasing partnership with radical sexual perversity, I must ask: Why on Earth are 78% of parents still sending their kids there?

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Springtime on Martian dunes near the north pole

1:42 pm

Dunes near the Martian north pole, in the spring

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 27, 2021. It shows a strange scattering of dunes on a flat plain. The red at the top of each dune probably indicates exposed dust and sand. The white fringe is likely either water frost or the leftover mantle of dry ice that is deposited in the polar regions each winter down to 60 degrees latitude, and disappears with the coming of spring, sublimating back into carbon dioxide gas.

There are a lot of puzzles here. The overview map below provides some context, but only some.
» Read more

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