Category: Behind The Black

A pond on Bennu

9:42 am

Pond on Bennu
Click for full resolution.

The OSIRIS-REx science team has released new high resolution images of one particular area on Bennu’s northern hemisphere. The image on the right, cropped and reduced to post here, shows what they label a “pond of regolith,” seen as the relatively smooth area in the upper left.

This is not literally a pond, but instead is a low-lying spot where smaller particles have settled over time, producing a flattish area that looks, and in some ways, resembles a pond or puddle, only in this case the material isn’t water but fine-grained dust or pebbles.

On March 19 the science team will be presenting their initial results at a special session at the 50th Lunar and Planetary Science Conference in Texas. That same day they will hold a press conference summarizing the most interesting aspects of those results. Stay tuned.

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Chinese lunar rover and lander enter their third lunar night

9:21 am

The Chinese lunar rover Yutu-2 and its lander Chang’e-4 have gone into hibernation as they enter their third lunar night on the far side of the Moon.

According to Chinese news reports, both spacecraft have now exceeded their nominal lifespan.

With all systems and payloads operating well, the Yutu-2 team will continue roving and science data collection on lunar day 4 of the Chang’e-4 mission, according to a [Chinese] announcement.

Yutu-2 added 43 meters to its overall drive distance in its third day of activities, continuing a path to the northwest of the landing site, which was recently named ‘Statio Tianhe’ by the International Astronomical Union. The rover just covered seven meters between waking for lunar day 3 on Feb. 28 and Mar. 3, during which time it navigated carefully toward a 20 centimeter diameter rock in order to analyze the specimen with an infrared and visible light spectrometer to determine its origin.

I am struck by how tentative the Chinese and their rover appear. The first Russian lunar rover, Luna 17, traveled 6.5 miles in eleven months. The second, Luna 21, traveled 23 miles in four months. At the pace Yutu-2 is setting, it will not come close to these mileages. Moreover, my impression of Chinese space technology in the past decade has been that it is quite robust. This tentativeness thus surprises me. Maybe because this is a government project they are simply covering their butts should something go wrong, and thus making believe the rover is more delicate than it really is.

As Scotty on Star Trek once said, “Always under predict, then over perform.” We might be seeing that pattern here.

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Curiosity has another computer crash

8:53 am

Since March 6 all activity from Curiosity seemed to stop, with no images and no science team updates. The reason? The rover had experienced another computer crash and reboot:

Curiosity experienced a computer reset on its Side-A computer on Wednesday, March 6, 2019 (Sol 2,339), that triggered the rover’s safe mode. This was the second computer reset in three weeks; both resets were related to the computer’s memory.

The mission team decided to switch from the Side-A computer back to the rover’s Side-B computer, which it operated on for most of the mission until November of 2018. Side-B recently experienced its own memory issue; the team has since further diagnosed the matter, reformatting the Side-B computer to isolate areas of “bad” memory. As of today, Curiosity is out of safe mode, and the team is configuring the rover for new science operations in the clay unit. Curiosity is expected to return to science operations as early as Wednesday.

This news is worrisome. The track record for spacecraft with increasing computer problems is that they never get better. Instead, the problem steadily worsens until operations become limited or even impossible. In the meantime engineers work wonders to extend the mission, but in the end this is a battle they appear to always lose.

We are beginning to see this pattern with Curiosity. Both of its computers have now experienced problems. It appears they have a better handle on the problems with the back-up computer (Side-B), so that is why they have switched back to it. Should its own memory issues continue to deteriorate however the rover will be in serious trouble, as the Side-A computer has proven to be very unreliable.

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New analysis supports catastrophic floods and intermittent ocean on Mars

7:03 pm

The intermittent ocean at the outlet to Marineris Valles

A new analysis of Martian data once again suggests that an intermittent ocean once existed in the planet’s northern hemisphere, and that it was fed by catastrophic floods coming down from the volcanoes through Marineris Valles.

“Our simulation shows that the presence of the sea would have attenuated cataclysmic floods, leading to shallow spillovers that reached the Pathfinder landing site and produced the bedforms detected by the spacecraft,” said [lead scientist Alexis Rodriguez].

The team’s results indicate that marine spillover deposits contributed to the landscape that the spacecraft detected nearly 22 years ago, and reconcile the mission’s in situ geologic observations and decades of remote-sensing outflow channel investigations.

The sea bears an uncanny resemblance to the Aral Sea on Earth in that in both instances they lack distinct shoreline terraces. Its rapid regression over shallow submerged slopes resulted in rates of shoreline front retreat too fast for the terraces to form. The same process could partly account for the long-recognized lack of northern plains shorelines.

“Our numerical simulations indicate that the sea rapidly became ice-covered and disappeared within a few thousand years due to its rapid evaporation and sublimation. During this time, however, it remained liquid below its ice cover,” said PSI Senior Scientist Bryan Travis, a co-author in the paper.

The map above shows the outlet region to the west and north of Marineris Valles. (The paper from which it is adapted is available on line here.) It shows that inland sea, created by the catastrophic floods. Because it sits at a lower elevation than the plains to the north, the floods that entered it ponded there, where they dried up. Only when the floods were at their highest did the water spill out into the northern plains.

In reading the paper, it confirms many of the suppositions I myself have made in my frequent posts analyzing numerous Mars Reconnaissance Orbiter (MRO) images, such as the lack of a clear shoreline because the ocean was short-lived. As it dried up its edge left patches of shoreline, at different elevations and in pondlike patterns, almost like the beach debris left behind by the tide.

The paper also shows that some of my guesses were not quite correct. For example, this new analysis says that the catastrophic floods only partly carved out the chaos terrain of Hydraotes Chaos, rather than do it all as I supposed here. Instead, the floods contributed, but much of the erosion occurred when the short-lived inland sea existed here, eroding away at the mesas from all sides.

Read it all. Though this remains a simulation based on what is presently very incomplete data and thus has many uncertainties, it will give you a much deeper understanding of what we presently theorize about the past geological history of Mars.

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Electric power restored in Venezuela

3:34 pm

Socialist Paradise! The socialist government of Venezuela yesterday managed to restore electric power after a week-long blackout.

Power has returned to Venezuela after a week after the country was plunged into darkness, but access to uncontaminated water remains critical.

Venezuelan Information Minister Jorge Rodrigues said at a press conference on Wednesday that power was 100 percent restored, adding: “President Nicolas Maduro has decided to resume work activities throughout the country” on Thursday. “School activities remain suspended for another 24 hours.”

Water, however, remains a problem. The blackout worsened the quality of drinkable water in the country, with many residents reporting what appeared to be oil-contaminated black water coming out of their taps.

As is usual for leftist fascists who have caused incomprehensible misery and catastrophe, the Maduro government immediately looked for scapegoats, blaming both the United States and its political opposition. Like all fascists, they are never responsible for their own failures. The blame is always found elsewhere.

I guarantee that this power restoration is very temporary. Venezuela, once very wealthy, is now bankrupt. It has run out of other people’s money, and no longer has the resources, under socialist rule, to fix these issues. Nor is its socialist government willing to do anything to reform its operations. More disasters are certain.

But don’t worry. This is the paradise the Democrats in Congress plan for us here in the U.S. What could possibly go wrong?

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Russia successfully launches manned Soyuz to ISS

11:43 am

Update: The Soyuz rocket has successfully placed the manned Soyuz capsule into orbit.

The leaders in the 2019 launch race:

3 SpaceX
3 China
2 Europe (Arianespace)
2 Russia

The U.S. still leads China 4 to 3 in the national rankings.

Initial post: The Russians are right now counting down to a 3:14 pm (eastern) manned Soyuz launch to ISS.

A live video stream of the launch is available at the link from both NASA and the Russians. I have embedded the Russian stream below the fold. It has little narration, and so avoids the annoying propaganda stuff that the NASA feed is littered with.

This manned launch is a bit more interesting in that it is attempting to put in space the three astronauts who were on the aborted October launch. This is also only the second manned Soyuz launch since that abort, so there remains a bit of nervousness about it.
» Read more

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A gathering of dust devils

9:51 am

Dust devil tracks
Click for full resolution image.

A bunch of cool images! The European Space Agency (ESA) today released more than a dozen Martian images taken by the camera on its Trace Gas Orbiter spacecraft.

In addition to a snapshot of InSight and its landing area, “The images selected include detailed views of layered deposits in the polar regions, the dynamic nature of Mars dunes, and the surface effects of converging dust devils.” The release also included images showing details of two of Mars’ giant volcanoes, Olympus Mons and Ascraeus Mons.

The image I have highlighted to the right, reduced to post here, shows a spot on Mars where for some unknown reason dust devils love to congregate.

This mysterious pattern sits on the crest of a ridge, and is thought to be the result of dust devil activity – essentially the convergence of hundreds or maybe even thousands of smaller martian tornadoes.

Below is a side-by-side comparison of this image (on the right) with a Mars Reconnaissance Orbiter (MRO) image taken in 2009 (on the left).
» Read more

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World View crashes?

8:44 am

Capitalism in space: The hi-tech high-altitude balloon company World View has failed to meet its commitments in its local development deal and has changed leadership.

Pima County’s supervisors approved a ballsy deal with World View amid fanfare, criticism and a ginned-up lawsuit the county won. The county would build World View a headquarters and a launch pad for the balloons. The company would pay rent on the facilities and repay the county for its end, plus a guarantee of escalating its local workforce to 100 by the end of 2018, 200 by 2022 and 400 by 2032.

Three years on, there’s been a catastrophic explosion and a leadership change as World View’s promise of “Jobs!” Jobs! Jobs!” has turned into “eh … jobs …” The company has a staff of 87. That’s 13 fewer than what was promised in the contract. Because World View refused to make public its internal growth projections, the county approved the deal after its own study predicted the company would hire pushing 400 workers by now.

The company had started out casting itself as a tourist operation, offering people multi-hour high-altitude flights for far less than the suborbital rocket companies. In 2017 the company quietly shifted its marketing, touting its balloon technology instead as a way to do high altitude research and reconnaissance. Soon thereafter they had an explosion during a test flight.

Since then they have apparently done little. With the recent corporate restructuring I wonder at the company’s future.

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Aldrin family ends legal battle

8:20 am

Buzz Aldrin and his family have decided to end their legal fight over the assets of the former Apollo astronaut.

Seeking to restore family harmony months before 50th anniversary celebrations of the first human moon landing, Apollo 11 astronaut Buzz Aldrin has dropped a lawsuit that accused two of his children and the family foundation of abusing his finances and trust.

His children, Andy and Jan, also have dismissed an effort to win legal guardianship of their father, an 89-year-old Satellite Beach resident whom they claimed suffers from dementia.

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NASA considering replacing SLS with commercial rockets for first Orion test mission

9:58 pm

Capitalism in space: Faced with endless delays that will likely prevent the first scheduled launch of SLS in June 2020, NASA is now considering using commercially purchased rockets to send the Orion capsule and European service module on that same mission.

NASA now believes the Space Launch System will not be ready for the EM-1 test flight by June 2020, the program’s most recent target launch date. Jim Bridenstine, NASA’s administrator, said Wednesday the space agency is weighing alternatives to keep the Orion spacecraft on track for a lunar mission in 2020 to test the capsule’s European-built power and propulsion module, and assess the performance of the crew capsule’s heat shield during blistering re-entry into Earth’s atmosphere from the moon.

“Some of those options would include launching the Orion crew capsule and the European service module on a commercial rocket,” Bridenstine said in a hearing with the Senate Committee on Commerce, Science and Transportation.

Bridenstine said it is important for NASA to stick to its commitment to launch EM-1 by June 2020, and his announcement Wednesday marked the first time a NASA leader has publicly discussed launching the Orion spacecraft’s first lunar mission on a commercial rocket, and not the more expensive government-run Space Launch System. “Certainly, there are opportunities to utilize commercial capabilities to put the Orion crew capsule and the European service module in orbit around the moon by June of 2020, which was our originally-stated objective, and I’ve tasked the agency to look into how we might accomplish that objective,” Bridenstine said.

Because Orion and its service module are so heavy they cannot be launched by a single Falcon Heavy rocket. However, that rocket could easily put everything in orbit in two launches, where the two parts could dock together.

There is still a problem with this plan, according to Bridenstine:

“I want to be clear. We do not have, right now, an ability to dock the Orion crew capsule with anything in orbit. So between now and June of 2020, we would have to make that a reality.”

I find this fact incredible. NASA built Orion without the capability to maneuver and dock with other spacecraft? If this is true, it shows once again the outright incompetence of anything our federal government does, including NASA.

Regardless, Bridenstine’s announcement is very good news. If Orion is launched on that 2020 first test mission using commercial rockets, it will demonstrate clearly the uselessness of the expensive and very delayed SLS. It will also make it politically easier to consider shutting it down, before it eats up more funds.

More important, this statement by Bridenstine indicates that there are many people in the Trump administration that have come to this same conclusion. This statement also means that they are beginning to make the political moves necessary to make the cancellation of SLS possible.

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Sandmann lawyers file $275 million defamation lawsuit against CNN

9:29 am

The law firm for Nicholas Sandmann, the Kentucky teenager who was slandered by numerous leftist mainstream news organizations in January, has now filed a $275 million defamation lawsuit against CNN.

You can read or download the full suit here [pdf]

This suit is on top of a $250 million lawsuit the firm has also filed against the Washington Post.

Right now it appears to me that both the Washington Post and CNN are going to lose big in these suits. Following the filing of the lawsuit against it the Post published “an editor’s note” concerning its coverage of the incident, but never admitted to or apologized for its false reporting. Instead, it merely noted the numerous errors and false claims in the original reporting. If anything, that correction makes it more liable, as it suggests the false coverage was acceptable to it, at the time.

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Toyota and JAXA to work together to build lunar rover

8:38 am

Capitalism in space? Toyota and and Japan’s space agency JAXA announced yesterday that they have signed an agreement to build lunar rover.

The rover “will be an important element supporting human lunar exploration, which we envision will take place in the 2030s”, JAXA Vice President Koichi Wakata told a symposium in Tokyo. “We aim to launch such a rover into space in 2029.”

The rover is still in the conceptual stage, but an illustration in the news release showed a six-wheel vehicle that somewhat resembled an armored personnel carrier.

A spokesman for Toyota, which plans to ramp up fuel-cell cars as a zero-emission alternative to gasoline vehicles, said the project would give the company a chance to test its technologies in the moon’s harsh environment and improve them. [emphasis mine]

Ten years to build a rover? That’s not capitalism, that’s a government jobs program whose only goal is to spend money and never accomplishes anything.

Japan continues to disappoint. Even as India and China forge ahead aggressively with new space technology and exciting projects, Japan seems unable to harness its considerable private resources to bring life to its aerospace industry. Their unmanned planetary program, as illustrated by Hayabusa-2, is right now having some success, but the pace of achievement has tended to be slow and laborious. This rover project seems to continue that trend.

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Heartstrings Cello Ensemble – For the Beauty of the Earth

6:01 pm

An evening pause: Composed by John Rutter.

Hat tip Danae.

I am as always looking for suggestions for Evening Pauses. If you’ve seen something you like and have never suggested something before, mention this in a comment here. Don’t post the suggestion in your comment. I will email you for it.

I like live performances, cool engineering, and quirky things. Variety is the watchword. I also tend to avoid politics and items about space exploration, as the evening pause is intended as a pause from that stuff.

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Opportunity’s parting shot

4:31 pm

Opportunity's last panorama
Click for full image.

The Opportunity science team today released the last full 360 degree panorama taken by the rover last spring, prior to the global dust storm that ended its fifteen year mission on Mars.

Over 29 days last spring, NASA’s Mars Exploration Rover Opportunity documented this 360-degree panorama from multiple images taken at what would become its final resting spot in Perseverance Valley. Located on the inner slope of the western rim of Endurance Crater, Perseverance Valley is a system of shallow troughs descending eastward about the length of two football fields from the crest of Endeavor’s rim to its floor.

“This final panorama embodies what made our Opportunity rover such a remarkable mission of exploration and discovery,” said Opportunity project manager John Callas of NASA’s Jet Propulsion Laboratory in Pasadena, California. “To the right of center you can see the rim of Endeavor Crater rising in the distance. Just to the left of that, rover tracks begin their descent from over the horizon and weave their way down to geologic features that our scientists wanted to examine up close. And to the far right and left are the bottom of Perseverance Valley and the floor of Endeavour crater, pristine and unexplored, waiting for visits from future explorers.”

If you click on the image above you can go to the full image and zoom and scan across it.

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Water system in Caracas goes dry

2:49 pm

The water system in Caracas, capital of the socialist paradise of Venezuela, is now shutting down because it needs electricity to operate and it does not have it because of the collapse of the power system.

Caracas began going dry Monday as Venezuela’s power crisis put utilities out of commission, risking supplies for 5.5 million people, many of whom found themselves reduced to carrying buckets of filthy river water.

Service, intermittent in normal times, was scarce to nonexistent in large swathes of the capital and experts saw little reason for hope. Caracas is 900 meters above sea level and water comes from the Tuy system of reservoirs and pumping stations below. Those depend on a reliable electric supply of 2,000 megawatts, said Norberto Bausson, who was the head of state utility Hidrocapital in the 1990s. “As of this morning, this system hasn’t been restarted yet,” Bausson said Monday. “The supply of water for the city is at risk.”

The power crisis — and now the water crisis — are testing the hold of strongman President Nicolas Maduro. Opposition leader Juan Guaido is trying to topple him after a re-election widely viewed as fraudulent and using as his main argument widespread deprivation after six years of Maduro’s rule. Hunger is widespread in the nation. Its infrastructure has decayed to critical levels.

But wait! Think of the wonderful things these people are doing to prevent climate change! No power system, no burning of those evil fossil fuels, and less carbon dioxide in the atmosphere! This is exactly what the modern luminaries of the Democratic Party like Congresswoman Alexandria Ocasio-Cortez (D-New York) want.

We should all congratulate Maduro and work to emulate him here in the U.S.

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Trump’s budget will not “destroy” or “gut” science

12:10 pm

Our terrible press does it again. Yesterday the Trump administration released its proposed 2020 federal budget [pdf], and as usual the pro-government propagandists in the media got to work to lobby against it.

This proposed budget will do none of these things.

These articles all fail to apply even the slightest and tiniest bit of context to their analysis. The budget numbers proposed by the Trump administration might reduce the budgets of some science agencies from what they had gotten the year before, but overall the proposed budgets remain gigantic, far more than received by these same agencies only a few years before.

You don’t believe me? Let me open your eyes.
» Read more

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New research detects increase in Bennu’s rotation

10:32 am

New research using ground-based observations has detected a slight increase over time in the daily rotation of the asteroid Bennu.

The new research finds the asteroid’s rotation is speeding up by about 1 second per century. In other words, Bennu’s rotation period is getting shorter by about 1 second every 100 years.

While the increase in rotation might not seem like much, over a long period of time it can translate into dramatic changes in the space rock. As the asteroid spins faster and faster over millions of years, it could lose pieces of itself or blow itself apart, according to the study’s authors.

…The change in Bennu’s rotation could be due to a change in its shape. Similar to how ice skaters speed up as they pull in their arms, an asteroid could speed up as it loses material.

Nolan and his co-authors suggest the reason for the increase in Bennu’s rotation is more likely due to a phenomenon known the YORP effect. Sunlight hitting the asteroid is reflected back into space. The change in the direction of the light coming in and going out pushes on the asteroid and can cause it to spin faster or slower, depending on its shape and rotation.

Truth is, this is not a very significant finding. Asteroids don’t weight much, and thus have very weak gravitational fields. It is therefore very easy to change their orbit and rotation, as well as add or subject material from them.

In this sense, the conclusion above is likely incorrect. What they have found is that the asteroid’s rotation increased at a pace of about 1 second per century, during their study period. Their data only covers the period from 1999 to 2005. Bennu could easily slowed its rotation, or increased it even more, during other times.

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SpaceX about to install engines on Starship hopper

9:26 am

Capitalism in space: Late last week SpaceX officials revealed that they are about to install the first two Raptor engines on their Starship hopper prototype being assembled at the Texas spaceport.

According to an official SpaceX statement, once Raptor is installed on Starhopper, the integrated vehicle will perform a combination of ground systems testing, propellant loading, static fire tests, and low-altitude hover demonstrations to prove out the brand new vehicle, engine, and facilities. Prior to the final months of 2018, the build site, launch pad, and prototype Starship now preparing for imminent hop tests were little more than empty dirt lots on the southern tip of the Texas coast.

…“SpaceX will conduct checkouts of the newly installed ground systems and perform a short static fire test in the days ahead,” he said. “Although the prototype is designed to perform sub-orbital flights, or hops, powered by the SpaceX Raptor engine, the vehicle will be tethered during initial testing and hops will not be visible from offsite. SpaceX will establish a safety zone perimeter in coordination with local enforcement and signage will be in place to alert the community prior to the testing.” – James Gleeson, March 8th, SpaceX

It is not clear when these first hopper tests will occur, but based on the pace that SpaceX is setting, it should not be too far into the future. Before that however they will likely need to first do some static fire tests, on the ground.

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Anti-Semite Democrat says Trump simply isn’t human

4:55 pm

They’re coming for you next: In a discussion noting similar immigration policies of both Trump and Obama, anti-Semite Democrat congresswoman Ilhan Omar (D-Minnesota) said that the comparison was “silly” because “One is human. The other is really not.”

Every Democratic voter had better realize this basic fact: Too many of the people they are voting for see their political opponents in this light, which means it will be very easy for them to treat their opponents as bugs that should be squashed. And this is what almost always happens when leftist socialists gain power, in the Soviet Union, in Germany, in North Korea, in East Germany, in China, and in innumerable other places in the past century.

Omar is simply being honest about her hateful bigotry.

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The nationwide Venezuela power outage

2:23 pm

Link here. The article gives a good overview of the now days-long blackout that will go on for days more. Key quote:

How did the country reach this point, in terms of its power network?

Years of disrepair, lack of maintenance and investment. From a human capital point of view, repressive management, terrible wages, and unsafe working conditions. For instance, the technicians are forbidden to talk about this. In February 2018, union leader Elio Palacios was detained because he said that a national blackout was imminent.

The one detail that would have accurately described those years of neglect would have been “socialist rule.” The people who have been in charge of Venezuela since the 1990s have all been heroes of today’s modern American socialists like Bernie Sanders and Alexandria Ocasio-Cortez as well as most of the leaders in the Democratic Party.

Be prepared for the same here. We already see signs of this collapse in urban cities that have been solid Democratic Party strongholds for decades, such as San Francisco, Chicago, and New York. These fascist political leaders like political and economic collapse, because they can use it as a lever to garner more power and wealth to themselves.

Note also this quote from the second link above:

“What can you do without electricity?” said Leonel Gutierrez, a 47-year-old systems technician, as he carried his six-month-old daughter while he walked to find groceries. “The food we have has gone bad.”

Yet this is exactly the future envisioned by Congresswoman Alexandria Ocasio-Cortez (D-New York) in her New Green Deal, where all future electricity will come only from renewable resources, a concept that is simply impossible. The result will be no electricity at all.

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Martian massive landslides

1:24 pm

Though scientists have found some evidence of slow erosion and change on the Martian surface, it is today generally inactive. While the weak wind of Mars’ thin atmosphere continues to work its will, and the likely presence of underground frozen water acts to shift the surface shape as the seasons come and go, none of this happens quickly.

Essentially, Mars is a quiet place.

Once however catastrophic events took place, gigantic floods flowing down to the east from the planet’s huge volcanoes to carve out Marineris Valles, the solar system’s largest known canyon. As that water rushed eastward it ripped the terrain apart quickly, creating deep side canyons, drainage valleys, and chopped up regions now dubbed as chaos terrain, multiple mesas separated by numerous fissure-like canyons.

Overview of Marineris Valles and landslide

The overview map on the right shows Valles Marineris and its drainage to the east and north into the vast northern plains of Mars. It also shows the location of one of the largest regions on Mars of chaos terrain, dubbed Hydraotes Chaos, located close to the mouth of this gigantic drainage system more than 2,500 miles long.

Massive Martian landslide
Click for full image.

Recently scientists have used the high resolution camera on Mars Reconnaissance Orbiter (MRO) to begin taking images of the massive landslides on the face of the mesa north of Hydraotes Chaos that was hit directly by these floods. The location of the most immediately interesting of these landslide images is also indicated on this overview image.

To the right is that image, rotated, cropped, reduced, and annotated to post here. The white boxes indicate two full resolution sections that I highlight below at full resolution.

This image shows that full cliff. The total drop from the plateau at the top to the floor where Hydraotes Chaos is located to the south is approximately 8,200 feet, almost exactly comparable to the depth of the north rim of the Grand Canyon.

The image shows numerous evidence of avalanches and erosion, both at its base and at its rim. None of these avalanches likely occurred during those catastrophic floods, but long afterward.
» Read more

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The travels of Moon’s scarce surface water

9:19 am

An analysis of data from one of Lunar Reconnaissance Orbiter’s (LRO) instruments have allowed scientists to map the movements of the scarce water on the lunar surface.

Up until the last decade or so, scientists thought the Moon was arid, with any water existing mainly as pockets of ice in permanently shaded craters near the poles. More recently, scientists have identified surface water in sparse populations of molecules bound to the lunar soil, or regolith. The amount and locations vary based on the time of day. This water is more common at higher latitudes and tends to hop around as the surface heats up.

…Water molecules remain tightly bound to the regolith until surface temperatures peak near lunar noon. Then, molecules thermally desorb and can bounce to a nearby location that is cold enough for the molecule to stick or populate the Moon’s extremely tenuous atmosphere, or “exosphere”, until temperatures drop and the molecules return to the surface.

The quantities we are talking about here are very tiny. This will not be the water that future settlers will depend on. Instead, it will be those pockets of ice in the permanently shaded craters.

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Dragon successfully splashes down in Atlantic

8:58 am

Capitalism in space: SpaceX’s manned Dragon capsule has successfully returned to Earth, splashing down in the Atlantic this morning.

There is a short video at the link showing the splashdown.

As far as I can tell, this test mission went 100% right. They now have the capsule they will use for the launch abort flight, which they hope to do by June, if not sooner. Assuming that goes well, they will be ready to do the manned flight by July, as planned.

The only thing I can see preventing this would be elements in NASA’s bureaucracy, Congress, and the federal government that are hostile to SpaceX and the concept of independent free Americans doing great things. These elements prefer giving power and control to their big bloated government, even if it can’t accomplish anything and that failure gives aide and comfort to hostile foreign powers.

We shall see if those elements move to block this mission in the coming months.

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