Behind The Black – Robert Zimmerman

China launches five military surveillance satellites

July 3, 2021 9:55 am Robert Zimmerman

China today launched five military surveillance satellites using its Long March 2D rocket.

The rocket’s first stage crashed into “the extreme eastern Shaanxi Province, ” according to the article. No word on whether it landed near habitable areas.

The leaders in the 2021 launch race:

20 SpaceX
19 China
11 Russia
3 Northrop Grumman

The U.S. leads China 29 to 19 in the national rankings.

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1776 – Hatching an Egg

July 2, 2021 6:01 pm Robert Zimmerman

A evening pause: On this day, July 2nd, the day the Founding Fathers actually signed the Declaration of Independence, I think it appropriate to once again watch this wonderful song from the 1976 movie version of the 1972 musical, 1776. As I said in earlier posts of this song on Independence Day, “not only did the musical capture the essence of the men who made independency happen, it is also a rollicking and entertaining work of art.”

And despite the hate being spewed against America and its founding principle that all humans are created free with the right to life, liberty, and the pursuit of happiness, that truth still shines. As John Kennedy said of himself, ourselves, and these founding fathers. “We stand for freedom.”

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Progress docks with ISS

July 2, 2021 12:36 pm Robert Zimmerman

As expected a Russian Progress freighter docked with ISS yesterday, on schedule and with no mishaps.

I report this non-news story simply because of the Russian claim yesterday that a SpaceX Starlink satellite and Falcon 9 upper stage threatened a collision with that freighter as it maneuvered in orbit prior to docking.

Not surprisingly, there was no collision. The Russians knew this, or they would never have launched as they did. They made a stink about it as a ploy to stain SpaceX, a company that has taken almost all their commercial launch business by offering cheaper and more reliable rockets.

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Today’s blacklisted American: YouTube blacklists group exposing Chinese genocide in its Xinjiang region

July 2, 2021 12:12 pm Robert Zimmerman

The Bill of Rights cancelled on YouTube
No free speech allowed on YouTube.

Today’s blacklisting victim is not really an American, but since it is an American company doing the blacklisting I think the story is applicable. It appears Google-owned YouTube has decided to remove videos on the Atajurt Kazakh Human Rights’ channel that expose the genocide and ethnic cleansing that China is doing to as many as a million people in its Xinjiang region.

Atajurt Kazakh Human Rights’ channel has published nearly 11,000 videos on YouTube totaling over 120 million views since 2017, thousands of which feature people speaking to camera about relatives they say have disappeared without a trace in China’s Xinjiang region, where UN experts and rights groups estimate over a million people have been detained in recent years.

On June 15, the channel was blocked for violating YouTube’s guidelines, according to a screenshot seen by Reuters, after twelve of its videos had been reported for breaching its ‘cyberbullying and harassment’ policy.

The channel’s administrators had appealed the blocking of all twelve videos between April and June, with some reinstated – but YouTube did not provide an explanation as to why others were kept out of public view, the administrators told Reuters.

Following inquiries from Reuters as to why the channel was removed, YouTube restored it, explaining that it had received multiple so-called ‘strikes’ for videos which contained people holding up ID cards to prove they were related to the missing, violating a YouTube policy which prohibits personally identifiable information from appearing in its content. They reinstated the channel on June 18 but asked Atajurt to blur the IDs.

» Read more

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Perseverance’s most recent view of Jezero Crater

July 2, 2021 10:30 am Robert Zimmerman

Click for full resolution.

Click for interactive map.

Cool image time! The panorama above, reduced to post here, is made from two navigation camera images on the Mars rover Perseverance, found here and here.

The map to the right, taken from the “Where is Perseverance?” website and annotated further by me, shows with the yellow lines what I think (but am not sure) is the area seen in the panorama.

The navigation cameras on Perseverance are more wide angle than the navigation cameras on Curiosity, in order to cover a larger area. They thus produce a slight fisheye distortion, illustrated by the curve of the horizon.

The large mountain in the center right is likely the crater rim. You can also see the knobs to the left as indicated on the overview map. The rover is now about halfway to the southernmost planned spot it is expected to reach within the floor of Jezero Crater, which is about a half to three quarters of a mile further south.

The terrain seems quite desolate and barren, which of course is no surprise, because that is what it is like on all of the surface of Mars. No plant life, just rocks and dirt. While Curiosity is now in the mountains, Perseverance remains on the crater floor, so the points of interest (from the mere tourist’s perspective) are small or far away.

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More delays in India’s space program

July 2, 2021 9:36 am Robert Zimmerman

Blaming COVID-19, the head of India’s space agency ISRO, K. Sivan, announced yesterday that they are delaying the first unmanned test flight of their manned space capsule so that it will not fly in 2021 as planned.

ISRO had planned eight launches in 2021, but has so far only flown one, and that launch took place in February. Since then no launches have occurred. Moreover, in 2020 India only completed two launches, far less than planned. In other words, their fear of COVID has essentially shut down their entire government space program for two years.

Meanwhile, China, Russia, SpaceX, and most other private companies roll on, launching frequently and without any negative consequences. The difference tells us that India is over-reacting, and allowing its fearful bureaucracy to run the show. The result is that they are losing ground not only in their effort to fly their first manned mission, but in commercial market share. I am certain that satellite companies that would have flown on their rockets have been shifting their business to SpaceX, Rocket Lab, and many of the other new rocket startups in the U.S.

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Bezos vs Branson: Virgin Galactic to do suborbital flight on July 11th carrying Richard Branson

July 1, 2021 11:06 pm Robert Zimmerman

SpaceShipTwo

Capitalism in space: Virgin Galactic today announced that it is now planning its first passenger flight of its VSS Unity suborbital spacecraft on July 11th, and that flight will carry Richard Branson as one of its passengers.

[Aleanna Crane, vice president of communications for Virgin Galactic] said that the last flight had been so flawless that the team had decided to test the cabin experience. “Who better to test the full cabin experience than Richard Branson?” she said. “He is flying as a mission specialist, and he has a role like the rest of the crew.” The craft will carry three other Virgin Galactic employees in the cabin seats in addition to the two pilots up front.

…The company plans to broadcast the flight beginning at 9 a.m. Eastern time on July 11. The SpaceShipTwo rocket, named Unity, will be carried under an airplane named White Knight Two to an altitude of 50,000 feet before being dropped. Unity’s engine will then ignite, taking it up to higher than 50 miles. At the top of the arc, passengers will float for about four minutes before the space plane re-enters the atmosphere and glides to a runway landing.

By flying on July 11th, Virgin Galactic — and Branson — will beat Blue Origin — and Jeff Bezos — by nine days in accomplishing the first passenger suborbital flight. Blue Origin’s July 20th flight however will be carrying the first paying customer, while Virgin Galactic’s flight will not.

For Branson making this flight ahead of Bezos is almost essential. He has been promising this flight now for more than fourteen years, always declaring it was only months from happening. It never did, and the years dragged on and on with no achievement or Virgin Galactic suborbital tourist flights. To get beaten now would be quite embarrassing, to put it mildly. Yet, to only win this race by mere days remains embarrassing as well, since Virgin Galactic was supposed to do this more than a decade ago and did not.

Regardless, both flights are stunts intended to garner publicity and encourage ticket sales for future suborbital flights. And while there appears to be some market interest in these suborbital flights, both are mere pipsqueaks to the coming orbital tourist flights by SpaceX, Axiom, and the Russians, with Boeing to follow shortly thereafter.

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David Frazer – The Deal

July 1, 2021 6:01 pm Robert Zimmerman

An evening pause: Watch as the artist creates a work of art, that can be reproduced endlessly..

Hat tip Cotour.

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Bezos invites original female candidate for Mercury program to fly on New Shepard flight July 20th

July 1, 2021 5:47 pm Robert Zimmerman

Jeff Bezos has invited Wally Funk, 82, one of the original thirteen women astronaut candidates for the 1960s Mercury program, to fly on his suborbital tourist flight scheduled for July 20th, joining Bezos, his brother Mark, and the still unnamed winner of the auction to buy that seat.

Funk is a pioneer in aviation: She was the first female Federal Aviation Administration inspector and first female National Transportation Safety Board air safety investigator. She has logged 19,600 hours of flight time and taught more than 3,000 people to fly, she said in Bezos’s Instagram video. “Everything that the FAA has, I’ve got the license for,” Funk says in the video. “And, I can outrun you!”

In the Instagram video, Bezos describes the plan for the New Shepard’s journey to a wide-eyed Funk, down to the moment when the rocket returns to the desert surface and its doors open. “We open the hatch, and you step outside. What’s the first thing you say?” Bezos asks Funk.

She does not hesitate. “I will say, ‘Honey, that’s the best thing that ever happened to me!’ ” Funk declares, pulling Bezos into a bear hug.

This is a gracious gesture by Bezos, even some on the left will use it to slander the 1960s NASA and America by making both look bigoted against women. That was not what happened, and Funk’s own success as a woman pilot and FAA official at that time proves it.

Why Blue Origin has not named the winner of its auction to buy that last seat however is beginning to be a bit puzzling.

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Today’s blacklisted American: Rappers have song banned by Spotify & SoundCloud for criticizing BLM, government lockdowns, and the modern perverse sexual movement

July 1, 2021 11:22 am Robert Zimmerman

The Bill of Rights cancelled at SoundCloud and Spotify
No free speech allowed at SoundCloud or Spotify.

Persecution is now cool! Rappers Bryson Grey and Patriot J have had a song with the opening line “They might ban me for this song” banned by Spotify & SoundCloud.

The song strongly criticized BLM, the government lockdowns, and the modern perverse sexual movement. Bryson noted in announcing the Spotify ban that though these same outlets claimed the song was banned for hateful speech, they do not ban much more violent rapper songs that glorify murder, crime, and drug use.

Patriot J responded by pointing out that other black rappers can glorify death, crime and all kinds of immoral and disgusting lifestyles, “but if you mess around and rap about traditional values and expose truths they will BAN YOU!”

“Remember y’all, you can rap about anything you want except going against the LGBT. You can rap about your vagina to children all day, you can rap about popping pills, you can rap about doing crime… but not the forbidden topic,” tweeted Bryson Gray.

This second link also included this tidbit about the intolerant employees at Spotify:
» Read more

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Al-Amal detects Martian aurora

July 1, 2021 10:11 am Robert Zimmerman

Aurora on Mars

The United Arab Emirates Al-Amal Mars orbiter has detected evidence of a Martian aurora that would be visible at night for short periods.

The ultraviolet images to the right have been reduced slightly to post here.

These three images of atomic oxygen emission at a wavelength of 103.4 nm from the planet Mars were obtained by the Emirates Mars Ultraviolet Spectrometer instrument on 22 April, 23 April, and 06 May 2021 respectively. The full set of data collected during these observations include far and extreme ultraviolet auroral emissions which have never been imaged before at Mars. The beacons of light that stand out against the dark nightside disk are highly structured discrete aurora, which traces out where energetic particles excite the atmosphere after being funneled down by a patchy network of crustal magnetic fields that originate from minerals on the surface of Mars.

Though Mars does not have a magnetic field, it is believed that sections of the planet’s crust are magnetized, and under the right conditions can guide the charged particles from the Sun’s solar wind to the night side to hit the atmosphere where they break up and produce the aurora. Because there is no magnetic field however the particles are not guided by the field lines to the poles, but to different spots at all latitudes, depending on circumstances.

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Judge rules SpaceX must comply with Justice subpoena

July 1, 2021 9:22 am Robert Zimmerman

A federal Judge has ruled that SpaceX must comply with Justice Department subpoena demanding its full hiring records in connection with an investigation by the agency’s Immigrant and Employee Rights Section about SpaceX’s decision to not to hire a non-citizen.

However, the DOJ unit is not only investigating the complaint, but also has said it “may explore whether [SpaceX] engages in any pattern or practice of discrimination” barred by federal law. Investigators in October issued a subpoena demanding that SpaceX provide information and documents related to its hiring and employment eligibility verification processes, to which SpaceX has not fully complied.
Hiring policies in place

SpaceX’s lawyers argued in court that the DOJ’s probe is overbearing given the original complaint. “No matter how generously ‘relevance’ is construed in the context of administrative subpoenas, neither the statutory and regulatory authority IER relies on, nor the Fourth Amendment to the U.S. Constitution, permits IER to rifle through SpaceX’s papers on a whim and absent reasonable justification,” SpaceX said. “And even if IER could somehow belatedly justify its current investigations, IER’s subpoena is excessively overbroad. IER’s application for an order to comply with the subpoena should be denied,” the company added.

There is another component that suggests this investigation is bogus and is intended as an attack by the government against SpaceX. The company makes rockets, and it must be extra careful about its hiring of any foreign national. So, on one hand the government forbids SpaceX from hiring foreigners, and on the other hand the government is condemning SpaceX for not doing so.

Moreover, it does appear that Justice is going on a fishing expedition in SpaceX’s files, something it is forbidden to do according the fourth amendment of the Constitution. A search such has this can only occur when there is evidence a specific crime has occurred. The search Justice wishes to do is broad and unreasonable, not based on any specific allegations but merely to “explore” SpaceX records to find a crime.

We have only just begun. The law and the Constitution means little to many in the Biden administration, in Washington, and in our government in general. What matters is power and the ability of these thugs to tell everyone else what to do. It looks like they increasingly have SpaceX in their sights.

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Scientists solve methane data conflict on Mars

July 1, 2021 9:10 am Robert Zimmerman

Using the methane detector on the rover Curiosity scientists now think they have solved the mystery why Curiosity has detected methane in the atmosphere near the surface while Europe’s Trace Gas Orbiter fails to detect any methane at all.

[Planetary scientist John E. Moores from York University in Toronto], as well as other Curiosity team members studying wind patterns in Gale Crater, hypothesized that the discrepancy between methane measurements comes down to the time of day they’re taken. Because it needs a lot of power, TLS [Curiosity’s methane detector] operates mostly at night when no other Curiosity instruments are working. The Martian atmosphere is calm at night, Moores noted, so the methane seeping from the ground builds up near the surface where Curiosity can detect it.

The Trace Gas Orbiter, on the other hand, requires sunlight to pinpoint methane about 3 miles, or 5 kilometers, above the surface. “Any atmosphere near a planet’s surface goes through a cycle during the day,” Moores said. Heat from the Sun churns the atmosphere as warm air rises and cool air sinks. Thus, the methane that is confined near the surface at night is mixed into the broader atmosphere during the day, which dilutes it to undetectable levels. “So I realized no instrument, especially an orbiting one, would see anything,” Moores said.

Immediately, the Curiosity team decided to test Moores’ prediction by collecting the first high-precision daytime measurements. TLS measured methane consecutively over the course of one Martian day, bracketing one nighttime measurement with two daytime ones. With each experiment, SAM sucked in Martian air for two hours, continuously removing the carbon dioxide, which makes up 95% of the planet’s atmosphere. This left a concentrated sample of methane that TLS could easily measure by passing an infrared laser beam through it many times, one that’s tuned to use a precise wavelength of light that is absorbed by methane.

“John predicted that methane should effectively go down to zero during the day, and our two daytime measurements confirmed that,” said Paul Mahaffy, the principal investigator of SAM, who’s based at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. TLS’ nighttime measurement fit neatly within the average the team had already established. “So that’s one way of putting to bed this big discrepancy,” Mahaffy said.

While this explains the data conflict, it does not yet explain where the methane is coming from. It is suspected it is coming from underground, but why and from what is still unclear. Nor do scientists yet understand why it doesn’t accumulate enough in the atmosphere for Trace Gas Orbiter to detect it. Something is causing the methane to break up sooner than expected.

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Russia: Progress freighter and SpaceX rocket/satellite to have near miss

July 1, 2021 9:00 am Robert Zimmerman

According to a Russia news outlet, their just launched Progress freighter will have a near miss today prior to its docking with ISS with two SpaceX objects, a Falcon 9 upper stage and a decommissioned Starlink satellite.

The Progress spacecraft, which carries about 3,600 lbs. (1,633 kilograms) of cargo including food, fuel and other supplies to the orbital outpost, launched from Roscomos’ Baikonur cosmodrome in Kazakhstan at 7:27 p.m. EDT (2327 GMT) on Tuesday (June 29). Progress 78 will approach the two objects about three and a half hours before its docking at the International Space Station, which is scheduled for 9:02 p.m. EDT on July 1 (0102 July 2 GMT).

The close approach, which triggered a potential collision alert, was detected by the Roscosmos TsNIIMash Main Information and Analytical Center of the Automated System for Warning of Hazardous Situations in Near-Earth Space (ASPOS OKP), Roscosmos said in the statement issued on the space agency’s website Wednesday (June 30) at 7:47 a.m. EDT (1147 GMT).

Based on preliminary calculations, the Starlink 1691 satellite will be just 0.9 miles (1.5 kilometers) away from Progress 78 on Thursday (July 1) at 5:32 p.m. EDT (2132 GMT). Three minutes later, a fragment of a Falcon 9 rocket booster left in orbit in 2020 is expected to approach the spaceship within 0.3 miles (500 meters).

Based on that timetable, the near miss has already occurred. No word yet on whether there were any issues.

What is interesting is that Russia should have known this prior to launch. It is routine procedure to consider known orbital objects in scheduling liftoffs. Either they knew and decided to purposely fly this close for political reasons (it allows them to slam SpaceX while also touting the dangers of space junk) or had not done their due diligence before launch.

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Relativity signs deal to expand rocket facility

July 1, 2021 8:53 am Robert Zimmerman

Capitalism in space: The rocket company Relativity Space announced yesterday that it has signed an agreement for a major expansion of its rocket manufacturing facility in California.

The firm — fresh off a $650 million Series A fundraising round announced earlier this month — said Wednesday (June 30) it has signed for a 1-million-square-foot (93,000 square meters) headquarters factory at the Goodman Commerce Center, in its current hometown of Long Beach, California.

The 93-acre plant used to host Boeing’s C-17 military transport aircraft manufacturing, with the last C-17 produced there in 2015. Now, Relativity’s factory will make it the anchor tenant for a planned 437-acre business district west of the Long Beach Airport, the company said. It also plans to hold on to its existing factory space to continue producing its Terran 1 rocket.

Relativity will occupy the new space in January 2022, which will eventually host dozens of the company’s proprietary Stargate printers that can produce Terran 1 and its newly announced reusable version of the rocket, called Terran R. Relativity said the facility will include a fusion of 3D printing, artificial intelligence and autonomous robotics to create a new rocket in less than 60 days.

Relativity has not yet launched any rockets nor has it conducted any test flights. Its first test flight of Terran-1 is presently scheduled for later this year, though no date is set. The company is one of five American new rocket startups that say they will do their first launch before the end of 2021.

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Astra completes SPAC merger, goes public

July 1, 2021 8:34 am Robert Zimmerman

Capitalism in space: Astra yesterday finalized its merger with the investment company Holicity and became the first launch company with stock publicly traded.

Today (June 30), the Bay Area launch startup completed its previously announced merger with Holicity, a special purpose acquisition company (SPAC) backed by Bill Gates and billionaire telecom pioneer Craig McCaw, among others. Astra will start trading on the Nasdaq Global Select Market Thursday (July 1), becoming the first launch company ever to do so — a milestone marked by Astra CEO Chris Kemp, who will ring Nasdaq’s opening bell in the morning.

The merger brings the company $500 million in cash.

Astra has not yet successfully completed an orbital launch, though it hopes to begin monthly launches before the end of the year. It has attempted two orbital test flights, with the second only failing to reach orbit because it ran out of fuel. It says it has contracts for 50 launches, and will ramp up to weekly launches next year.

Astra is one of five rocket companies that have announced they will do their first orbital flight in 2021. So far, none have done so.

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Russia launches another 36 OneWeb satellites

July 1, 2021 8:23 am Robert Zimmerman

Capitalism in space: Russia today launched another 36 OneWeb satellites from its Vostochny spaceport using its Soyuz-2 rocket.

This raises the number of OneWeb satellites in orbit to 254.

The leaders in the 2021 launch race:

20 SpaceX
18 China
11 Russia
3 Northrop Grumman

The U.S. remains ahead of China, 29 to 18, in the national rankings.

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June 30, 2021 Zimmerman/Batchelor podcast

June 30, 2021 10:02 pm Robert Zimmerman

Embedded below the fold in two parts.
» Read more

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Alan Jackson – Mercury Blues

June 30, 2021 6:01 pm Robert Zimmerman

An evening pause: Performed on the television comedy show, Home Improvement.

Hat tip Jim Mallamace.

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Hubble update: Engineers narrow possible failed hardware to one of two units

June 30, 2021 5:09 pm Robert Zimmerman

Engineers working to pinpoint the cause of the computer hardware issue that has placed the Hubble Space Telescope in safe mode since June 13th have now narrowed the possible failed hardware to one of two units.

The source of the computer problem lies in the Science Instrument Command and Data Handling (SI C&DH) unit, where the payload computer resides. A few hardware pieces on the SI C&DH could be the culprit(s).

The team is currently scrutinizing the Command Unit/Science Data Formatter (CU/SDF), which sends and formats commands and data. They are also looking at a power regulator within the Power Control Unit, which is designed to ensure a steady voltage supply to the payload computer’s hardware. If one of these systems is determined to be the likely cause, the team must complete a more complicated operations procedure to switch to the backup units. This procedure would be more complex and riskier than those the team executed last week, which involved switching to the backup payload computer hardware and memory modules. To switch to the backup CU/SDF or power regulator, several other hardware boxes on the spacecraft must also be switched due to the way they are connected to the SI C&DH unit.

Over the next week or so, the team will review and update all of the operations procedures, commands and other related items necessary to perform the switch to backup hardware. They will then test their execution against a high-fidelity simulator.

The team performed a similar switch in 2008, which allowed Hubble to continue normal science operations after a CU/SDF module failed.

That such a switch was done successfully in the past is a very hopeful sign. However, it sounds as though they are not 100% sure they have pinpointed the actual issue, which means that this switch still might not fix the problem.

We can only wait and hope. And even if the fix works, Hubble will no longer have working backup units for these pieces of hardware. Should any of the backup that are now being activated fail, the telescope will fail, and this time it won’t be fixable with the equipment on board.

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SpaceX successfully launches 88 smallsats, marking a renaissance in rocketry in 2021

June 30, 2021 1:07 pm Robert Zimmerman

null
First stage landing at Cape Canaveral today

Capitalism in space: SpaceX today successfully used its Falcon 9 rocket to place 88 smallsats into orbit, the third rocket launch today.

While Transporter-2 won’t beat the unprecedented number of satellites launched on on Transporter-1 [the first such smallsat launch by SpaceX earlier this year], SpaceX says it will still “launch 88 spacecraft to orbit” and – more importantly – carry more customer mass. In other words, Transporter-2 will carry roughly 50% fewer satellites, each of which will weigh substantially more on average.

Ordering directly through SpaceX, [the price] begins at $1 million for up to 200 kg (~440 lb). … A majority of small satellites weigh significantly less than 200 kilograms but if a customer manages to use all of their allotment, the total cost of a SpaceX rideshare launch could be as low as $5000 per kilogram – incredibly cheap relative to almost any other option. For a [comparable] launch … on a Rocket Lab Electron or Astra Rocket 3.0 rocket using every last gram of available performance, the same customer would end up paying a minimum of $25,000 to $37,500 per kilogram to orbit.

The launch also included a handful of Starlink satellites, adding to SpaceX’s constellation. I have embedded SpaceX’s live stream below the fold. As I write this the satellites have not yet been deployed from the second stage, but that should happen shortly.

The first stage landed successfully, the eighth time this booster has done so. The fairings were also reused, completing their third flight. All told, this was SpaceX’s 20th launch in 2021, 18 of which used reused boosters.

The leaders in the 2021 launch race:
» Read more

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Today’s blacklisted American: Journalist Andy Ngo blackballed again, this time by SoundCloud

June 30, 2021 12:31 pm Robert Zimmerman

Journalist Andy Ngo, blacklisted
Journalist Andy Ngo: blacklisted and banned by Soundcloud

Persecution is now cool! Journalist Andy Ngo has been blackballed again, this time by the podcast and music website SoundCloud.

[Ngo’s] podcast, ‘Things You Should Ngo’ was banned “on grounds of being dedicated to violating” Soundcloud’s rules. Unsurprisingly, as Ngo’s publication The Post Millennial reports, there’s a problem with the explanation.

The latest episode of the podcast was uploaded more than one year ago and there was no option in the notification email for Ngo to appeal or even seek further information. Over the weekend, SoundCloud’s Trust & Safety Team informed Ngo via email of the permanent ban for “violating” the site’s Terms of Use and Community Guidelines, which state that users must not use the platform to create content “that is abusive, libellous, defamatory, pornographic or obscene, that promotes or incites violence, terrorism, illegal acts, or hatred on the grounds of race, ethnicity, cultural identity, religious belief, disability, gender, identity or sexual orientation, or is otherwise objectionable in SoundCloud’s reasonable discretion.”

Of course, Ngo’s podcast did none of those things. His podcast simply interviewed politicians and public figures, a perfectly legitimate thing for a reporter to do in a free society. That such reporting according to SoundCloud must now be censored because some of those interviewed expressed conservative values just shows us the close-minded and oppressive attitude of that company’s management.

I say “again” in the headline because this censorship by SoundCloud follows a long string of blackballing of Ngo by many different outlets and totalitarian organizations.
» Read more

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Paypal lowering fees charged to sellers

June 30, 2021 11:21 am Robert Zimmerman

Isn’t competition great? Paypal announced today that as of August 2, 2021 it is lowering the fees it deducts from the payments made by buyers to sellers.

The fee reduction is about 15% to 20%, depending on the fee, which means I have just gotten a pay raise from those who donate or subscribe to Behind the Black using PayPal. This does not mean I want everyone to use PayPay. Right now I actually prefer new subscribers use Patreon, simply because it makes me less dependent on PayPay should it decide my commentary is “evil” and must be blacklisted.

The reductions make these fees lower than Paypal’s new competitors, such as Patreon, or from the conservative right, such as David Rubin’s Locals.com and Dan Bongino’s AlignPay. However, I expect them all to quickly drop their fees as well to match PayPal. And as long as PayPal continues to treat its conservative customers like dirt, expect this competition to continue to heat up.

Lowering its price won’t help if PayPal doesn’t stop playing partisan politics. It really has only two options for maintaining its market dominance. Either it can stop acting like a petty authoritarian dictator and canceling conservative vendors, or it can team up with the government to get its competitors banned or shut down. Which do you think it will eventually choose?

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Astronomers detect a white dwarf that is both the smallest and most massive ever found

June 30, 2021 10:04 am Robert Zimmerman

Using an array of telescopes on the ground and in space, astronomers have discovered a white dwarf star that is both the smallest ever found while also being the most massive.

White dwarfs are the collapsed remnants of stars that were once about eight times the mass of our Sun or lighter. Our Sun, for example, after it first puffs up into a red giant in about 5 billion years, will ultimately slough off its outer layers and shrink down into a compact white dwarf. About 97 percent of all stars become white dwarfs.

While our Sun is alone in space without a stellar partner, many stars orbit around each other in pairs. The stars grow old together, and if they are both less than eight solar-masses, they will both evolve into white dwarfs.

The new discovery provides an example of what can happen after this phase. The pair of white dwarfs, which spiral around each other, lose energy in the form of gravitational waves and ultimately merge. If the dead stars are massive enough, they explode in what is called a type Ia supernova. But if they are below a certain mass threshold, they combine together into a new white dwarf that is heavier than either progenitor star. This process of merging boosts the magnetic field of that star and speeds up its rotation compared to that of the progenitors.

Astronomers say that the newfound tiny white dwarf, named ZTF J1901+1458, took the latter route of evolution; its progenitors merged and produced a white dwarf 1.35 times the mass of our Sun. The white dwarf has an extreme magnetic field almost 1 billion times stronger than our Sun’s and whips around on its axis at a frenzied pace of one revolution every seven minutes (the zippiest white dwarf known, called EPIC 228939929, rotates every 5.3 minutes).

Based on their present understanding of stellar evolution, single white dwarfs do not form from stars with more than 1.3 solar masses. Stars with greater masses instead become neutron stars, or black holes. To get a white dwarf of 1.35 masses thus requires a merger of two white dwarfs, but it also means that the resulting dwarf could be unstable and could collapse into a neutron star at some point. The data also suggests that this merger process might be how a large number of neutron stars actually form.

The dwarf is also the smallest ever found, with a diameter of 2,670 miles, because the larger masses squeezes it into a tighter space.

Dust covering solar panels threatens to end InSight mission

June 30, 2021 9:52 am Robert Zimmerman

The InSight science team has revealed that the amount of dust that presently covers the solar panels on the Mars lander has now reduced their available power by about 80%, and if a dust devil doesn’t soon blow the dust off they will have to shut the spacecraft down sometime in the next ten months.

“The dust accumulation on the solar arrays has been considerable. We have about 80% obscuration of the arrays,” said Bruce Banerdt, principal investigator for the InSight mission at NASA’s Jet Propulsion Laboratory (JPL) in Southern California, according to SpaceNews.

Banerdt showed the impact of the declining power levels during a June 21 meeting of NASA’s Mars Exploration Program Analysis Group. When InSight landed near the Martian equator in November 2018, he said, the robot was generating roughly 5,000 watt-hours of power. Today that level is less than 700 watt-hours.

None of this is a surprise. Both the Opportunity and Spirit rovers faced the same problems. Both however were able to recover because periodically a dust devil would fly over the rover and clear the dust from the solar panels.

InSight however has not so far been lucky. While it has seen many nearby dust devils with its camera, none has come close enough to sweep the solar panels clean.

As the power has declined they have shut off various systems in order to keep the lander’s prime instrument, its seismometer, operating continuously. Engineers have also been using the scoop on the lander’s robot arm to try to dislodge some of the dust, with only a very very limited success. If the panels are not cleared soon, however, engineers will eventually be forced to shut everything down.

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Gravitational wave detectors see two different black holes as they swallowed a neutron star

June 30, 2021 9:41 am Robert Zimmerman

Astronomers using three different gravitational wave detectors have seen the gravity ripples caused when two different black holes swallowed a nearby neutron star.

The two gravitational-wave events, dubbed GW200105 and GW200115, rippled through detectors only 10 days apart, on January 5, 2020, and January 15, 2020, respectively.

Each merger involved a fairly small black hole (less than 10 Suns in heft) paired with an object between 1½ and 2 solar masses — right in the expected range for neutron stars. Observers caught no glow from the collisions, but given that both crashes happened roughly 900 million light-years away, spotting a flash was improbable, even if one happened — and it likely didn’t: The black holes are large enough that they would have gobbled the neutron stars whole instead of ripping them into bite-size pieces.

Note the time between the detection, in early 2020, and its announcement now, in mid-2021. The data is very complex and filled with a lot of noise, requiring many months of analysis to determine if a detection was made. For example, in a third case one detector was thought to have seen another such merger but scientists remain unsure. It might simply be noise in the system. I point this out to emphasize that thought they are much more confident in these new detections, there remains some uncertainty.

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SpaceX launch scrubbed because airplane strayed into what Musk calls “an unreasonably gigantic” launch zone.

June 30, 2021 9:33 am Robert Zimmerman

Capitalism in space: Yesterday a SpaceX Falcon 9 launch was scrubbed mere seconds before launch because an airplane had been detected inside the government’s keep-out zone.

The scrub was called by the range officer at T-11 seconds. SpaceX will attempt the launch again today.

Musk immediately blasted the size of that keep-out zone, which was established decades ago at the very beginnings of the space race and has not been adjusted as launch technology has improved.

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

Musk has successfully forced the range to accept new technology that simplifies launches, makes it possible for them to occur faster with less time in-between, and requires fewer range officials monitoring the launch. He is now pushing them to rethink the size of the range, which is likely much larger than now necessary, as Musk claims, because not only are rockets more reliable, their programming is more precise.

The article at the link also notes as an aside at the end another Musk tweet, that SpaceX’s Starlink network now has 70,000 customers and hopes to have 500,000 within a year. More on that story here.

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Russians launch Progress freighter; Virgin Orbit launches seven commercial satellites

June 30, 2021 9:04 am Robert Zimmerman

This morning two launches occurred. First the Russians successfully launched a Progress freighter to ISS, using their Soyuz-2 rocket.

Second, Virgin Orbit successfully completed its second orbital launch with its air-launched LauncherOne rocket, which was its first operational commercial launch, placing seven smallsats into orbit for three customers. This was also its second launch in 2021.

If all goes as planned, SpaceX will complete a third launch today also, placing more than 80 smallsats in orbit with its Falcon 9 rocket. Until then, however, the leaders in the 2021 launch race are as follows:

19 SpaceX
18 China
10 Russia
3 Northrop Grumman

The U.S. now leads China 28-18 in the national rankings.