Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

Update on SpaceX’s Super Heavy booster

9:55 am

Capitalism in space: According to this update on SpaceX’s Super Heavy booster, the first prototype is now stacked as two complete tank sections that only need to be welded together.

While a good amount of work still remains to weld the two halves together and connect their preinstalled plumbing and avionics runs, those tasks are largely marginal and will tweak the massive steel tower that’s now firmly in one piece. Comprised of 36 of the steel rings also used to assemble Starships, the first Super Heavy prototype – serial number BN1 – will stand roughly 67 meters (220 ft) tall from the top of its uppermost ring to the tail of its soon-to-be-installed Raptor engines.

At that height, Super Heavy BN1 is just 3 meters (~10 ft) shorter than an entire two-stage Falcon 9 or Falcon Heavy rocket – the second and third tallest operational rockets today. Of course, Super Heavy is just a booster and SpaceX says the rocket will stand at least 120m (~395 ft) tall with a Starship upper stage and spacecraft installed on top, easily making it the tallest (and likely heaviest) launch vehicle ever assembled.

The report also adds SpaceX’s confirmation that this prototype will never fly, but will be used solely for ground tests. It is the second prototype that will do the first short test hops, hopefully sometime this summer.

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SpaceX & NASA agree to better coordinate their satellite constellations to avoid collisions

9:49 am

NASA announced yesterday that it has signed an agreement with SpaceX to better coordinate and share information about their their satellite constellations in order to avoid collisions and launch conflicts.

SpaceX has agreed its Starlink satellites will autonomously or manually maneuver to ensure the missions of NASA science satellites and other assets can operate uninterrupted from a collision avoidance perspective. Unless otherwise informed by SpaceX, NASA has agreed to not maneuver its assets in the event of a potential conjunction to ensure the parties do not inadvertently maneuver into one another.

Makes great sense. Not only will this help avoid damage to satellites from both entities, it commits NASA’s support of SpaceX’s Starlink.

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NASA confident Webb will launch in October

9:36 am

In a briefing held yesterday, NASA officials — in summarizing the status of the James Webb Space Telescope — stated they were presently confident that its launch will take place in October this year, as presently planned.

[Eric Smith, JWST program scientist> said the program is dealing with one new technical issue. Two communications transponders suffered separate problems during testing in January. Engineers have tracked down the problems with the two units and started repairs this week. “Those boxes will be back in time for us to make our planned shipping date,” he said.

That issue, he acknowledged, will use some of the remaining schedule margin. “The plan right now is that we’ll get them back in time so that we don’t have to use all of it,” he said. “That’s the main thing that we’re watching regarding the margin.”

If launched in October, Webb will only be a decade behind schedule and a mere 20 times over budget, having been initially proposed to launch in 2011 for a cost of $500 million. Instead, it will cost about $10 billion.

The article also notes that the Biden administration might change the telescope’s name because Webb as a bureaucrat early in his career apparently publicly opposed homosexual rights. Such opinions can no longer be allowed, and anyone who has them must be blackballed as quickly as possible.

No matter. Webb was merely NASA’s administrator through almost its entire first decade, leading the agency in its triumph over the Soviets in the race to the Moon. Such achievements cannot be honored as they illustrate the past greatness of America. Moreover, Webb was a white man, and this makes him totally unqualified to receive any laurels. Today’s modern America hates itself and all white men.

The article also notes a variety of issues that will cause more delays of the new big astronomy boondoggle at NASA, the Roman Space Telescope. They say its launch will likely be delayed to 2026 because of the Wuhan flu panic. I predict this is only a foretaste. Expect many more delays and budget overruns, probably pushing its launch into the 2030s.

But no matter. What is really important is that this new boondoggle is named for a woman!

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Biden nominates former senator Bill Nelson for NASA administrator

9:20 am

The Biden administration today announced that it has nominated former Democratic senator Bill Nelson for Florida to be the next NASA administrator.

Nelson was a big proponent of SLS. He also was a big opponent of commercial space for many years, changing his mind only during the last few years in the Senate.

He is also old, 78. Though that age by itself does not guarantee failing mental abilities, the last time I saw Nelson live was during 2017 hearings instigated by senator Ted Cruz (R-Texas) related to the Outer Space Treaty. During those hearings he struck me as confused, unaware of the most recent developments in commercial space, and repeatedly struggling to express himself on the simplest topics.

In this sense he will make a great bookend with Joe Biden. In both cases the weak-minded elected official does not run things. Instead, it is the unelected Washington bureaucracy in charge.

How this will impact the growing and successful commercial space market at this moment remains unclear. Within NASA there are two camps, one favoring private enterprise and the other wanting to control it so that NASA decides everything. For the last half of the 20th century through the first decade of the 21st the latter was in charge. In the past decade the former has gained ascendancy.

As a longtime supporter of the latter group, Nelson’s appointment therefore could shift that battle in a way that aborts America’s new private space effort.

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SLS core stage successfully completes 8-minute static fire test

3:18 pm

NASA and Boeing today successfully completed a full 8-minute static fire test of the core stage of its first SLS rocket.

This was their second attempt, the first terminating prematurely after about one minute in January.

They must now analyze the test to make sure all went well. If it did, they then must figure out how long it will take to get the stage prepped and shipped to Florida and then prepped for launch. The schedule presently calls for a November launch. It is expected that date will be delayed, anywhere from one to three months.

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Today’s blacklisted Americans: California Democrats to blacklist all conservative or religious policemen

3:08 pm

The cancelled Bill of Rights
A document Democrats clearly don’t like.

They’re coming for you next: California Democrats have introduced a bill in the state legislature that would essentially ban the hiring of any policemen who had religious or political beliefs that oppose the agenda of the leftist sexual rights community.

The bill, known as the California Law Enforcement Accountability Reform Act (CLEAR Act), claims to combat “the infiltration of extremists in our law enforcement agencies” and would mandate a background check for all officers who have “exchanged racist and homophobic messages.”

Kalra claims that AB 655 is necessary to prevent “the apparent cooperation, participation, and support of some law enforcement” in the Jan. 6 Capitol breach.

The bill defines hate speech as “as advocating or supporting the denial of constitutional rights of, the genocide of, or violence towards, any group of persons based upon race, ethnicity, nationality, religion, gender, gender identity, sexual orientation, or disability.”

As several conservative and religious individuals note in the article, the bill’s vague language basically makes it illegal for cops to harbor conservative or religious beliefs, and will give the government the right to fire anyone who disagrees with the homosexual lobby or opposes abortion.

As of this moment the bill is not yet law. Knowing the strongly Democratic Party make-up of the legislature, however, expect it to pass with flying colors.

California has been a fascist state for at least a decade, with its voting system designed by the Democrats to prevent any opposition party from winning. This bill only accelerates that process. And if you live there don’t expect your voice to be heard if you protest the bill. The Democratic Party has a lock on all government positions, and doesn’t need to cater to the citizens of the state any longer. Their will shall be done.

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The changing seasons of Saturn

1:58 pm

Saturn changing
Click for full image.

Images of Saturn taken by the Hubble Space Telescope since 2018 now reveal the slow seasonal changes to the gas giant’s atmosphere during its lengthy year, twenty-nine Earth years long.

The Hubble data show that from 2018 to 2020 the equator got 5 to 10 percent brighter, and the winds changed slightly. In 2018, winds measured near the equator were about 1,000 miles per hour (roughly 1,600 kilometers per hour), higher than those measured by NASA’s Cassini spacecraft during 2004-2009, when they were about 800 miles per hour (roughly 1,300 kilometers per hour). In 2019 and 2020 they decreased back to the Cassini speeds. Saturn’s winds also vary with altitude, so the change in measured speeds could possibly mean the clouds in 2018 were around 37 miles (about 60 kilometers) deeper than those measured during the Cassini mission. Further observations are needed to tell which is happening.

The photo above shows Saturn’s northern hemisphere in 2018, 2019, and 2020. Note how the darker region at the pole grows with time.

This data supplements the data obtained by Cassini when it was in orbit around Saturn, and is presently the best information we can get since the Cassini mission ended.

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A drainage channel on Mars

12:01 pm

A drainage channel on Mars
Click for full image.

Today’s cool image from Mars highlights what is probably the biggest geological conundrum the red planet presents for planetary scientists. The photo to the right, rotated, cropped, and reduced to post here, was taken on February 1, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Though I have cropped it, I have cropped out very little, because the entire meandering drainage valley is its most interesting feature, and that takes up almost the entire image.

The photo was simply labeled by the camera team a “terrain sample northwest of Sytinskaya Crater”, so I suspect this was taken not in connection with any specific research but because they must use the camera at a regular intervals to maintain its temperature, and when they have gaps in their schedule they try to pick spots of interest in areas that have not had many high resolution photos taken. In this case however I suspect the location choice was very far from random, as they clearly wanted to capture this drainage system, in its entirety.

I called this merely a drainage channel without indicating what caused the channel, be it liquid water, ice, or wind, because in this case that is a main question. At first glance an Earthman will immediately suspect water, which is what scientists supposed for the last half century. The problem with that conclusion is that the Martian atmosphere is too cold and thin for liquid water to exist on its surface, and though there seems to be plenty of evidence that liquid water once existed there, no scientist has yet come up with a completely accepted climate model that allows for such conditions in anytime in Mars’ past.

The rover Opportunity found that some channels it explored might have been carved by wind, though to our human eyes it seems unlikely that a meandering tributary system such as this could have been carved by wind. The possibility however must not be dismissed out of hand, since Mars is an alien planet and alien things (to Earth) happen there.

The overview map below might provide some context.
» Read more

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Russia offers to partner in Turkey’s space program

9:16 am

The new colonial movement: Dmitri Rogozin, head of Russia’s Roscosmos, said yesterday that his agency is eager to partner with Turkey in its new effort to develop its own space program.

Explaining that a draft document is being prepared to make these contacts more systematic and comprehensive, Rogozin said that this will be the legal framework of the peaceful space activities cooperation between Ankara and Moscow.

Pointing out that a strong political will and competent management are required for the realization of space programs, Rogozin said, “Provided that the support of experienced partners is also required, a young space power can easily prepare and implement a full-fledged interplanetary mission in a very short time.”

For Turkey such a partnership would make great sense. Russia has done this kind of work many times in the past, for India, China, and the UAE. No reason Turkey can’t gain from Russia’s help. And Russia could use the cash that Turkey will pay for the business.

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SLS static fire test today

8:52 am

NASA will make its second attempt today complete a full 8 minute long static fire test of the core stage of its SLS rocket.

The two-hour window for the test begins at 3 pm (Eastern). You can watch it on NASA TV.

To put it mildly, a lot rides on this test. If anything should go wrong, the future of the SLS rocket will be grim indeed. And should all go well NASA will still be under grave schedule pressure. Though the actual first launch of SLS using this core stage is presently set for the fall, NASA has admitted that they need to review that schedule once today’s test is completed.

Preparations for the upcoming test are going well, NASA Acting Administrator Steve Jurczyk said in an interview March 17.

,,,If the test does go well, he said the agency should be able to soon confirm a launch date for the Artemis 1 mission, which will use the core stage being tested at Stennis. That mission is currently projected to launch in November. “I think that, within probably just a few weeks, they’ll take a look at the schedule one more time and confirm whether we can make November of this year or if we need to go out a little bit.”

The agency is trying hard to meet that November date, but no one will be surprised if the flight ends up happening in January ’22. Any later than that and they will have a new problem, as the already stacked solid rocket boosters must fly within a year of stacking, and this process began back in December ’20.

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March 17, 2021 Zimmerman/Batchelor podcast

11:44 pm

Embedded below the fold in four parts. This was my first appearance on the new John Batchelor Show for the CBS radio network. For those who used to listen to John on his old network, you will need to do some research to find his new radio locations.

Or you can listen to these podcasts here on Behind the Black, though they will usually get posted a day late.
» Read more

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Quakes on Mars as seen by InSight

3:14 pm

Martian quake map as seen by InSight

After completing its first full Martian year on the surface of the Red Planet, the scientists for the lander InSight today gave a report [pdf] of their results at this year’s annual 52nd Lunar and Planetary Science Conference, normally held in Texas but being done virtually this year out of terror of the coronavirus.

All told the lander’s seismometer has, as of just a few days ago, detected just over 500 quakes. The map to the right, showing the most distinct quakes and their locations, was adapted from a different presentation [pdf] at the conference. The numbers indicate the sols after landing when these quakes were detected.

This is essentially the region on Mars that I call volcano country. Some of the lava flood plains here are the youngest on Mars. To the east just beyond the edge of the map is the Tharsis Bulge, which holds Olympus Mons and the string of three giant volcanoes to its east. South of Cereberus Fossae but north of the yellow-colored cratered highlands is the vast Medusae Fossae Formation, the largest volcanic ash deposit on Mars.

The quakes suggest they are occurring as large blocks shift along faults, creating fissures and cracks that geologists call grabens. The long fissures of Cereberus Fossae are considered an example of grabens, so this activity suggests that shifting is still going on in the region.

In addition to outlining the location of the detected volcanoes, the presentation today summarized these other discoveries made by InSight about Mars’ interior structure:

  • The crust of Mars has likely two or three layers either 12 or 24 miles thick, with a total thickness no more than 45 miles. This is much thinner than most scientists had expected.
  • The mantle layer below the crust is estimated at about 250 to 375 miles thick, with a temperature between 1,600 to 1,700 degrees Kelvin. While quite hot, this is a cooler mantle than expected.
  • The core of Mars is somewhere between 1,100 to 1,300 miles in diameter, with a outer layer made of liquid. These results are at the high end of pre-mission expectations.

As already admitted, it was noted that the heat sensor experiment will not be able to provide the interior temperature of Mars, as its digging mole was unable to dig into the ground the 9 to 15 feet planned.

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