Author: Robert Zimmerman

Today’s blacklisted American: Mom criticizes school board, gets blacklisted by Facebook & Instagram, fights back and wins

11:49 am

The Bill of Rights cancelled at Facebook and Instagram
Doesn’t exist at Facebook or Instagram.

Blacklists are back and Facebook’s got ’em: When Gordana Schifanelli, a mother in a Maryland school district who is also an immigrant from communist Yugoslavia, created webpages criticizing the pro-Black Lives Matter indoctrination being introduced in the schools by school superintendent Andrea M. Kane, both Facebook and Instagram moved quickly to censor her, while others attempted to destroy her career.

The response from Big Tech and leftists in her community would have made Tito proud, Mrs. Schifanelli said referring to Josip Broz, the late dictator of Yugoslavia.

First they shut down her personal Facebook page.

“So I said, ‘OK, I’ll create my own,” she said. Facebook and Instagram shut down the “Kent Island Patriots” and “Maryland Eastern Shore Patriots” pages, too. When her 17-year-old son tried to start a Facebook page, he was blocked, she said.

The people seeking to censor Mrs. Schifanelli’s opposition to left-wing politics, many of whom did not have children in the public school system, attacked her as a racist. They leveled their accusations with the Maryland Bar Association and at the U.S. Naval Academy, where she teaches economics and law twice a week.

Another target of theirs did lose his job, and he is a plaintiff in a separate lawsuit.

Unlike many of the other stories I have chronicled in this daily column, this one has ended with what looks like a total victory for Mrs. Schifanelli.
» Read more

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SpaceX to refly Starship prototype #15 next?

9:13 am

Capitalism in space: SpaceX has rolled Starship prototype #15 to the launchpad in an apparent bid to immediately send it on its second flight, only two weeks after its first successfully 30,000 foot flight.

While SpaceX has yet to actually install Starship SN15 on Mount B, the prototype has been attached to a crane and said installation is imminent – possibly just waiting for winds to die down. As of publishing, SpaceX has removed SN15’s six ‘used’ landing legs but hasn’t replaced them – a necessary step before the Starship can fly again.

…It’s worth noting that even after SpaceX reinstalls Starship SN15 on a launch mount, there’s no guarantee that the prototype will fly again. Before any reflight, SpaceX will almost certainly put the rocket through at least one additional tank proof test and static fire its Raptor engines. Issues or damage that escaped initial post-flight inspections could easily arise during that process and it’s more likely than not that one or more of SN15’s three Raptors will be removed for detailed inspection or replaced outright.

If this prototype does fly next, the next question will be how high and how far. My guess would be that they will fly it to a much higher altitude to further refine the spacecraft’s flight capabilities on return. It makes no sense to simply repeat the last flight. Now is the time to push the design again, even if it means the loss of the prototype.

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NASA: Commercial demand exceeds supply at ISS

9:03 am

Capitalism in space: According to NASA officials, the number of private commercial tourist flights being proposed exceeds the availability of docking ports at ISS.

“We are seeing a lot of interest in private astronaut missions, even outside of Axiom,” said Angela Hart, manager of commercial low Earth orbit development at NASA’s Johnson Space Center. “At this point, the demand exceeds what we actually believe the opportunities on station will be.”

Opportunities for private astronaut missions are limited by what NASA calls the “traffic model” for the ISS, or the schedule of vehicles arriving and departing the station. Commercial crew missions are limited to two docking ports on the station, one of which is occupied by the vehicle that transported the current long-duration crew on the station. The other is used by commercial crew vehicles during crew handovers, cargo Dragon missions and private astronaut missions.

That restricts the opportunities for private astronaut missions. “About two is about all you fit in there with the rest of the traffic,” Dana Weigel, deputy manager of the ISS program at JSC, said.

The solution should be obvious to all. Private launch companies that wish to use ISS have to launch either their own docking ports, or their own modules with docking ports. This is Axiom’s plan, with its own module scheduled to arrive sometime in ’24. A secondary solution would be for private companies to launch their own space stations, independent of ISS. This would not only sidestep the problem of the bottleneck at ISS, it would free such a company from the charges NASA imposes for using ISS.

Meanwhile, it appears that Axiom is countering those new NASA’s charges for its ISS flights. From the article:

Thanks to an exchange of services between NASA and Axiom, it will actually be NASA paying Axiom for the Ax-1 mission. While Axiom is acquiring services such as crew supplies and on-orbit resources, NASA will be purchasing “cold stowage” space on the Crew Dragon spacecraft to return cargo to Earth at the end of the mission. NASA will pay Axiom $1.69 million for the mission, although Hart noted there will be other charges to Axiom for training and launch services, some of which are still being negotiated.

Suffredini said that, on later missions, Axiom will seek to reduce its reliance on NASA services. “We have a goal that, by after our third flight, we will provide all of those kinds of capabilities” that it is currently purchasing from NASA.

I wonder if that third flight will occur after the launch of Axiom’s module.

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A crater with wings!

1:19 pm

A crater with wings!
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on April 5, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a particularly unusual crater in the southern mid-latitudes on the eastern edge of Hellas Basin.

This region east of Hellas is where scientists have spotted many features that suggest buried glaciers. The terraced material inside this crater, as well as the splattered material surrounding it on three sides, are examples of such glacial material. You can also see similar glacial features, though less pronounced, inside the crater to the north.

The global map of Mars below marks the general location of this crater by a blue cross.
» Read more

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Today’s blacklisted American: The Catholic Church

12:24 pm

Cancelled Bill of Rights
No longer applies to the Catholic Church.

They’re coming for you next: In the past year the schools and churches of Catholic church nationwide have experienced numerous repeated acts of vandalism, violence, and arson, all expressing hate and a desire to deny it and its practitioners the right to express their religious beliefs.

At least 67 incidents occurred across 25 states since May 2020. … Incidents include arson, statues beheaded, limbs cut, smashed, and painted, gravestones defaced with swastikas and anti-Catholic language and American flags next to them burned, and other destruction and vandalism.

The article at the link provides a detailed list of the sixteen attacks from January to April 2021 alone. For a list of the attacks in 2020, go here, which also provides an update adding four more attacks in just the first week of May.

This is all reminiscent again of Kristallnacht in Nazi Germany, when Jewish businesses and synagogues were targeted in much the same way. » Read more

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The atomic hydrogen in Mars’ atmosphere

10:14 am

Atomic hydrogen in Mars' atmosphere, as seen by Al-Amal

The two photos to the right, cropped and reduced to post here, were taken by the ultraviolet spectrometer on the UAE Mars orbiter Al-Amal (“Hope” in English) on April 24 and April 25.

During the 10 hours 34 minutes between the images, the Hope probe moved from being over the planet near noon and viewing the entire dayside (top) to being over the planet at dusk and seeing both the day and night side (bottom). These images will be used to reconstruct the 3D distribution of hydrogen and learn more about its production through the process of splitting water molecules by sunlight and its eventual escape to space.

This data will eventually allow scientists to more precisely measure the total water loss to space that Mars’ experiences annually, which will also allow them to determine approximately how much water the planet has lost over the eons.

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A look at Ingenuity’s legs

9:56 am

Link here. This update, written by Bob Balaram, the helicopter’s chief engineer at JPL and Jeremy Tyler, senior aero/mechanical engineer at AeroVironment, outlines the engineering that went into building the helicopter’s legs in order to make sure they could withstand the somewhat hard landings required in the Martian environment.

To withstand these firm landings, Ingenuity is equipped with a cushy suspension system, [with a] distinctive open hoop structure at each corner of the fuselage where the landing legs attach. The lower half of this hoop is a titanium spring that can bend as much as 17 degrees to provide 3.5 inches of motion in the suspension, while the upper half is a soft non-alloyed aluminum flexure that serves as the damper or “shock absorber.” By plastically deforming and fatiguing as it absorbs energy, this flexure acts much like the crumple zone structure of a car chassis. However, unlike a car or the crumple-cushioned landing gear of the Apollo moon landers, Ingenuity’s titanium springs rebound after each impact to pull these aluminum dampers back into shape for the next landing.

The aluminum damper gets a little bit weaker with each cycle as cracks and creases develop. While it would eventually break after a few hundred hard landings, with only a few flights scheduled for this demonstration, that’s a problem we could only dream of having.

This is most likely the failure point that will end Ingenuity’s life, though at the present it is a bit in the future.

Also, the post reveals that JPL subcontracted much of the development of Ingenuity to this company.

AeroVironment designed and developed Ingenuity’s airframe and major subsystems, including its rotor, rotor blades, and hub and control mechanism hardware. The Simi Valley, California-based company also developed and built high-efficiency, lightweight propulsion motors, power electronics, landing gear, load-bearing structures and thermal enclosures for NASA/JPL’s avionics, sensors and software systems.

Good ol’ American capitalism does it again.

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Virgin Galactic reveals issue with WhiteKnightTwo

9:43 am

Capitalism in space: On the same day that Virgin Galactic unveiled a $130 million loss in its first quarter report, it also announced that it might have to delay the next flight of its Unity suborbital spacecraft because of an undisclosed “wear-and-tear issue” on its carrier airplane.

From the second link:

[Mike Moses, president of space missions and safety], in response to later questions from analysts, did not disclose the specific component of the aircraft that was at the heart of the issue, but described it as a “family of items that relate to fatigue and long-term stress” of the airplane. It was not an issue with the number of flights of VMS Eve, which first flew in 2008 and has made fewer than 300 flights since.

Engineers are currently examining the plane to determine if additional maintenance is needed now to correct that problem, with an update expected next week. Virgin Galactic had planned to perform work on the plane this fall during a downtime that would also include work on VSS Unity, but Moses said engineers are now looking at whether some of that work needs to be moved up.

If maintenance is needed now, it would delay the schedule of flight tests for SpaceShipTwo, but Moses said it was “a little too early” to know how long that would be.

They had previously announced that the next flight would be in May. They will decide in the next week whether to delay it.

Meanwhile, the company’s stock price continues to tumble, dropping from a high of about $62 earlier this year to a low of about $14 today. And I would say that the price is still over-priced. The path to profit for Virgin Galactic has become extremely narrow, with few options and not much margin, especially with Blue Origin now only two months away from its first commercial suborbital tourist flight.

Richard Branson started Virgin Galactic shortly after the SpaceShipOne won the Ansari X-Prize in 2004, promising hundreds of commercial passenger flights per year in only a few years. Seventeen years later no such flights have ever occurred. Worse, not only will Blue Origin likely do the first commercial suborbital flight first, SpaceX and Axiom are likely to complete the first orbital tourism flights before Virgin Galactic.

No harm to Branson however. He has sold off most of his stock in the company, and did it when its price was still high.

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OSIRIS-REx on its way back to Earth

10:54 pm

OSIRIS-REx today fired its engines and successfully put itself on course for returning its samples from the asteroid Bennu to Earth on September 24, 2023.

The May 10 departure date was precisely timed based on the alignment of Bennu with Earth. The goal of the return maneuver is to get the spacecraft within about 6,000 miles (approximately 10,000 kilometers) of Earth in September 2023. Although OSIRIS-REx still has plenty of fuel remaining, the team is trying to preserve as much as possible for a potential extended mission to another asteroid after returning the sample capsule to Earth. The team will investigate the feasibility of such a mission this summer.

The spacecraft’s course will be determined mainly by the Sun’s gravity, but engineers will need to occasionally make small course adjustments via engine burns.

The science team has already proposed one option, sending the spacecraft on a rendezvous with the potentially dangerous asteroid Apophis shortly after its 2029 close-fly of Earth. It could be that there are other targets as interesting that they need to choose from.

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The layers of Mars’ north pole icecap

12:30 pm

The layers of Mars' north pole icecap
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on April 1, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the high cliff edge of the Martian north polar ice cap, and was taken as part of the springtime monitoring for the numerous avalanches that fall from the icecap’s steep edge every spring.

This particular cliff is probably about 1,000 feet high. I cannot tell if the image captured any avalanches on the very steep north-facing cliff. What struck me about this image however was the terraced layers so visible on the west-facing scarp. You can clearly count about eleven distinct and thick layers, each forming a wide ledge.

Each layer represents a different climate epoch on Mars when the ice cap was growing, with new snow being deposited.
» Read more

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