Year: 2019

Tongue-shaped glaciers on Mars

2:53 pm

Tongue-shaped glacier on Mars
Click for full image.

Cool image time! I could also call this another example of mass wasting, which it appears to be according to my understanding of Martian geological processes. However, the Mars Reconnaissance Orbiter science team dubbed this image “Tongue-Shaped Glaciers in Centauri Montes,” and I have no right to disagree with them.

The image to the right, rotated, cropped, reduced, and brightened to post here, shows the most prominent tongue-shaped glacier in the full image. The two curved ridges to the south of the glacier’s tip are almost certainly old moraines of debris pushed there during earlier events, when the glacier material extended farther out. In fact, if you look close you can see that this tongue lies on top of a larger older tongue that lines up with the closer of these two ridges.

This feature is located at 37 degrees south latitude, which puts it inside Mars’s southern glacial band that extends from 30 to 60 degrees latitude. According to the present defined types of Martian glaciers, this tongue is what scientists have dubbed a lobate debris apron, a glacier that in many ways resembles glaciers we see on Earth.

The location of this feature is especially interesting, especially because other images have found that it is not unique to this region.
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Australia signs on to NASA’s Artemis project

9:33 am

Australia has committed $150 million to help its private sector contribute to NASA’s Artemis project and Trump’s goal to land a manned mission on the Moon by 2024, signing a joint agreement with NASA on September 21.

The government is investing $150 million over five years for Australian businesses and researchers to join NASA’s endeavour, and deliver key capabilities for the mission. “We’re backing Australian businesses to the moon, and even Mars, and back,” Prime Minister Scott Morrison said. “We’re getting behind Australian businesses so they can take advantage of the pipeline of work NASA has committed to.”

The specifics, as quoted from the agreement, are somewhat vague.

This agreement is part of NASA’s effort to accumulate allies for both Artemis and its lunar space station Gateway. Australia has now joined Russia, Europe, Japan, and Canada. All of these nations and their space agencies desperately want the U.S. project to take place, most especially Gateway, as it will firm up funding for them all for decades.

NASA already has the big space contractors behind Artemis, though Boeing has expressed some opposition to Gateway. It has also awarded a lot of small contracts to a number of companies in the new commercial space industry to support Artemis. On top of this, it has distributed the project’s management within NASA so as to solidify support in Congress.

By accumulating these allies whose interests are in line with NASA’s goals, the agency hopes to convince Congress to fund the project. Unfortunately, the House, controlled by the Democrats whose only policy goal these days is to oppose Trump, have so far refused to fund the Trump 2024 manned mission.

Whether Artemis and Gateway will happen remains an open question. Congress wants the pork both projects will bring them. I predict that if both houses of Congress return to Republican control in 2020 they will fund this boondoggle.

Unfortunately, this won’t get us anywhere near the Moon, as the project as designed actually makes lunar landings more difficult and expensive. Getting from Gateway to the lunar surface requires more equipment and fuel than going directly there. If built as NASA has proposed, our astronauts will watch from Gateway as China and India land and begin settling the Moon.

But it will justify the spending of a lot of taxpayer money in congressional districts for decades to come. Hooray!

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Some Boca Chica landowners reject SpaceX offer

9:07 am

Capitalism in space: SpaceX’s offer to buy the last homes in the hamlet of Boca Chica for its Starship spaceport has been rejected by some of the landowners.

Their reasons are obvious. They don’t want to move, and they also claim the appraisals SpaceX used to set its price, which the company claims is three times the value of the homes, are too low.

Although the Hawthorne, Calif.-based rocket company, in a letter dated Sept. 12 and sent via FedEx, is offering the Heatons three times the appraised value of their home, they say the offer isn’t close to what they’d need to sell. The appraisal conducted by SpaceX is several thousand dollars less than an appraisal the Heatons got through their bank five years ago, Terry said.

“I sent them an email the day after we got this letter, not being sarcastic or anything else,” he said. “I just told them the facts, that (their) appraisal is extremely low.”

If they obtained an appraisal five years ago that is less than SpaceX’s now, than SpaceX is certainly not offering them three times the value of their home.

SpaceX does not have the right to condemn these properties, as does the government. It must reach an equable deal with the landowners. In the case of the Heatons and several others, it sounds like this is going to take a lot of money. They want enough so that they can buy something comparable elsewhere.

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Storms on Jupiter

8:55 am

Storms on Jupiter
Click for full resolution image.

The image on the right, reduced to post here, was created by Citizen scientist Kevin Gill from recent Juno images taken of Jupiter, and shows in detail some of the many storms that fill Jupiter’s many bands of color.

We do not have a scale, but my guess is that these storms are probably about the size of the Earth, which means these storms are bigger than any hurricane you can imagine. If you click on the image to look at the full resolution photograph, you can see there are tiny white clouds clumped in the middle of the picture’s three biggest storms. Those clumps are probably also bigger than any single clouds you could find anywhere on Earth.

As I wrote in a post in April 2017 about a similar Juno image:

What should fill us with even more awe is that this only covers a very thin slice of the top of Jupiter’s deep atmosphere. The planet itself is about 89,000 miles in diameter, more than ten times larger than Earth. The depth of its atmosphere is not really known, but it must be deeper than several Earths, piled on top of each other. In that depth there must be many atmospheric layers, each thicker and denser than the one above, and each with its own weather systems and complexities.

It will take centuries of research, including the development of new engineering capable of accessing this place, to even begin to map out its meteorology. And this is only one gas giant, of what we now know must be millions and millions throughout the galaxy.

If we have the nerve and daring, the human race has the opportunity to go out there and never be bored. There will always be something unknown to discover.

All that still applies. We have only just begun our journey exploring the universe.

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Mitsubishi IDs cause of launchpad fire, reschedules launch

10:08 pm

Mitsubishi, the Japanese company that builds the H-2B rocket for Japan’s space agency JAXA, has identified the cause of the dramatic launchpad fire that broke out only about three hours before the launch of their HTV unmanned ISS cargo freighter.

MHI announced Friday that officials believe the fire started near an “exit hole” on the mobile launch platform. Investigators believe the blaze was most likely caused by static electricity, and exacerbated by a flammable oxygen-rich environment inside the mobile launch platform.

Low winds at Tanegashima during the Sept. 10 countdown allowed oxygen vapors to build up at the launch pad in higher concentrations than previous countdowns, officials said. Super-cold oxygen is used as an oxidizer in both stages of the H-2B rocket, and also flows through the first stage’s twin LE-7A main engines during pre-launch “chilldown” conditioning procedures.

“As a result of the investigation, it was confirmed that there was a high possibility that the fire spread due to the static electricity generated by the oxygen dripping from the engine exhaust port during the propellant filling operation, which continued to blow on the heat-resistant material in the exit hole at the movable launch pad,” MHI said in a statement. “We have taken corrective measures and have confirmed normal functioning of the rocket and facility,” MHI said.

They have rescheduled the launch for September 26. Initially they were aiming for September 24, but rescheduled because there might be an orbital conflict between their rocket’s second stage and the launch of a Soyuz to ISS that same day.

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Fred Astaire & Ginger Rogers – They Can’t Take That Away From Me

6:01 pm

An evening pause: Another movie pause tonight, this time showing the films themselves. This clip includes two performances of this song, from two different Astaire & Rogers films. The first, from Shall We Dance? (1937), has Astaire singing the song, knowing that the Rogers character is leaving him. Of course she ends up not going.

The second clip is from The Barkleys of Broadway (1949), their last film together and done after a split of ten years. They knew then this would be their last film, and now the words have a meaning far greater than the story in the film. When they exit at the end of this song, they know it is pretty much for the last time.

Hat tip to Phil Berardelli, author of Phil’s Favorite 500: Loves of a Moviegoing Lifetime.

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Climate forum disrupted by screaming protesters

4:33 pm

They’re coming for you next: A climate forum set up by the Republican club at Georgetown University College was so disrupted by screaming protesters that the police had to clear the room.

At the start of “Climate Forum: A Rebuttal,” protestors packed the room and, beginning with the introduction of the first speaker, shouted talking points, various obscenities, and hostile chants.

Despite campus free speech policies announced clearly by the hosts at the start of the event, the harassment continued. Amid the frequent disruptions, a protester dressed as a clown intermittently honked a horn.

The College Republicans called campus police, who tried to remove those interrupting the event, but the students refused to comply. They argued with the officers, refused to show the officers their student IDs, and declared the room an “open forum.”

Eventually, police had to clear the room entirely in an attempt to gain control of the situation. The hallway flooded with protestors — as well as students who appeared genuinely interested in listening to the panelists. Numerous campus administrators and even more officers arrived as the event remained postponed.

The panel finally restarted after police had blocked all but one doorway and refused entrance to anyone with signs. But some hecklers made it through, including one protester who had to be escorted out, but not before ensuring all attendees they are “on the wrong side of history.”

Note also that prior to the event and before they had heard anything, the Georgetown Democratic club condemned the forum,

Let us summarize what this event has taught us:

1. Those who believe in global warming are so close-minded that they are entirely unwilling to listen to another perspective.

2. Those who believe in global warming are so close-minded that they are determined to prevent anyone else from hearing another perspective.

3. Those who believe in global warming are so close-minded that they are determined to prevent anyone with a different perspective from speaking.

4. Those who believe in global warming are even willing to commit acts of violence to enforce numbers 2 and 3 above.

5. Law enforcement and the college administration at Georgetown are terrified of these protesters, and are unwilling to do anything to enforce the law and prevent those protesters from doing numbers 2, 3, and 4.

None of these lessons are very hopeful, because eventually this behavior will routinely lead to violence and possible death. In fact, it already has nearly done so in a number of places, such as the shooting at a Republican congressional baseball practice in Washington in 2017, and the routine violence in Portland whenever conservatives try to publicly demonstrate.

And it is why we got Trump, because unlike the police and administrators at Georgetown, Trump does not bow to this kind of childish and close-minded behavior. He fights back.

Finally, in what way do these protesters think they are going to persuade anyone to their perspective, with this kind of behavior?

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Cave pits in the Martian northern lowlands

1:22 pm

New pits in Hephaestus Planitia

I could call this my monthly Martian Pit update. Since November 2018 I have each month found from two to five new and interesting cave pits in the monthly download of new images from the high resolution camera on Mars Reconnaissance Orbiter (MRO). My previous posts:

All except the last August 12 post were for pits on the flanks of Arsia Mons, the southernmost in the line of three giant volcanoes to the southeast of Olympus Mons, and were thus almost certainly resulting from lava flows.

The August 12 post instead showed pits found in Utopia Planitia, one of the large plains that comprise the Martian northern lowlands where scientists think an intermittent ocean might have once existed. All of these pits are found in a region of meandering canyons dubbed Hephaestus Fossae.

In the most recent MRO release scientists once again focused on the pits in or near Hephaetus, imaging four pits, two of which have been imaged previously, as shown in my August post and labeled #2 and #4 in this article, and two (here and here) that appear new. The image on the right, cropped to post here, shows the two new pits, dubbed #1 and #3. In the full image of #1, it is clear that this pit lines up nicely with some other less prominent depressions, suggesting an underground cave. Pit #3 however is more puzzling. In the full image, this pit actually runs perpendicular to a long depression to the west. There are also no other related features around it.

What makes all four of these pits intriguing is their relationship to Hephaestus Fossae and a neighboring rill-like canyon dubbed Hebrus Valles, as shown in the overview map below.
» Read more

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Boeing pushing to kill Gateway for more SLS funds?

9:46 am

Turf war! According to Eric Berger at Ars Technica today, the House hearings yesterday about Gateway and the Trump effort to complete a manned mission to the Moon by 2024 suggest that Boeing is lobbying to kill both Gateway as well as NASA’s effort to use multiple commercial rockets, in order to get its SLS rocket more funding.

Essentially, Boeing is getting almost no contracts in connection to Gateway. Furthermore, the much cheaper commercial rockets are a serious competitive threat to its SLS rocket. However, if Gateway was dropped and the money instead committed to building a more powerful upper stage for SLS, which is Boeing’s baby, the money would go to them. Moreover, doing this would make it unnecessary for NASA to use other commercial rockets, since SLS could do it all.

Berger’s analysis seems right on target. While Gateway is a bad idea, what Boeing proposes instead would be no better. As Berger notes,

What was surprising is that [lawmakers] at the hearing also appeared to be swayed by [Boeing’s] view that bypassing commercial rockets and the Gateway would lead to a simpler and faster lunar mission. “I believe there is value in developing commercial capabilities,” [one lawmaker] said toward the end of the hearing. However, she added, “I am concerned that the decisions are not being driven by what is most efficient or effective and what is most cost efficient.”

This is an interesting viewpoint given that commercial rockets cost $100 to $200 million, at most, versus the $1 billion to $2 billion cost of a single SLS rocket—not including the hundreds of millions of dollars, at a minimum, the agency would have to invest in Exploration Upper Stage development contracts with Boeing. Moreover, one of the commercial rockets—the Falcon Heavy—already exists and has flown three successful missions. Other boosters, including Blue Origin’s powerful New Glenn rocket, should be ready to fly in two or three years. An SLS rocket with the better upper stage almost certainly wouldn’t be ready by 2024, and NASA knows this.

“At this point, there is no path by which the Exploration Upper Stage will be ready for Artemis 3 in 2024,” the NASA administration source told Ars. “Hence, it is not in the critical path (for the Moon landing).”

This lobbying effort provides us a perfect illustration of the overall incompetence and corruption that permeates our government in Washington. No one there appears the slightest bit interested in serving the national interest. Instead, the focus is on how they can get politicians to give them money.

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Russia and China to team up on lunar lander/orbiter missions

9:25 am

Russia and China have signed an agreement to cooperate on several future lunar lander and orbiter unmanned missions.

The agreements will see cooperation in Russia’s Luna-26 orbiter spacecraft and Chang’e-7 polar landing mission, according to Roscosmos, which could involve contributions of science payloads to the respective spacecraft. Both missions are currently scheduled for the early-to-mid 2020s.

The two sides also committed to previously announced plans to create a joint lunar and deep space data center, which will consist of hubs in both Russia and China.

How they will specifically cooperate on those specific space missions was not made clear. From what I can gather, the real heart of this agreement are those joint data centers for both missions.

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