A river of lava on Mars as long as the Columbia

9:45 am

Lava flow in Kasei Valles
Click for full image.

I’ve said it before and I’ll say it again. Mars is strange, Mars is wonderful, but above all, Mars is alien. Today’s cool image illustrates this saying quite nicely.

The photo to the right, cropped and reduced to post here, was taken on February 1, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and was simply labeled “Sacra Sulci Lava”. Sacra Sulci is a section of the Kasei Valles canyon that runs from the north rim of Valles Marineris north about 600 miles where it turns east for about 400 miles to drain out into the northern lowlands plains of Mars. Sacra Sulci is the region where that valley narrows and then turns east.

Apparently the flat smoother areas on the east and south on this image that rise about 60 feet above the surrounding terrain and that also seem to flow around mesas and into canyons are believed to be the edge of a massive lava flow that occurred about 150 to 200 million years ago and drained through Kasei Valles, just like water.

What makes this puzzling, however, is that everything I had read previously about Kasei Valles said that it was thought to have been formed from catastrophic floods of water on early Mars, when the planet was warmer and wetter. In fact, I had posted previously about this theory, and included the map below, taken from figure 8 of this paper [pdf], showing part of the process that some scientists believe occurred.
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Long March 5B crash estimate as of today

9:02 am

May 3rd prediction of Long March 5B crash
Click for full image.

According to estimates this morning by the Aerospace Corporation, the 21-ton core stage of China’s Long March 5B rocket will come crashing down to Earth sometime on May 10th, plus or minus 41 hours.

Their map to the right illustrates all the orbits that will take place during that time period, which in turn shows all the possible places that core stage might land. For example, though the center point in that time period puts the stage down in the Pacific west of South America, should it go down just a little more than two orbits later it will then be crossing over the entire continental United States, with even a very slim chance it could land on my own house in Arizona! If it should come down a little early instead it could land on Europe, the Middle East, India, or Australia.

This estimate is very very uncertain, and will be refined in the days ahead, though because of the chaotic nature of decaying orbits it will be impossible to refine it to less than half an orbit, even on the day of its return.

Nor can anyone do anything about it. Large sections of this big piece of hardware is going to hit the ground in an uncontrolled manner. And China, a signatory to the Outer Space Treaty which forbids exactly this sort of uncontrolled reentry, launched it anyway.

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Virgin Galactic delays quarterly earnings report

8:44 am

Waiting for Godot: Even as Blue Origin is finally about to announce the start of commercial ticket sales for its New Shepard suborbital spacecraft, Virgin Galactic has delayed release of its first quarter earnings report so that it will be released after, not before, that Blue Origin announcement.

Virgin Galactic claims the six day delay is in order to adjust numbers due to a new SEC requirement announced in mid-April. However, placing it after Blue Origin’s announcement instead of just the day before minimizes what would have been a very ugly-looking public relations disaster.

Whatever the actual reason for the delay, the prospect of delivering yet another dismal earnings report only hours before Blue Origin’s announcement could not have been an attractive one for Virgin Galactic CEO Michael Colglazier and new CFO Doug Ahrens. The quarterly earnings call is a major opportunity to influence Wall Street analysts who make recommendations on whether to buy or sell the company’s stock.

Virgin Galactic is expected to report a significant loss with minimal or no revenues as it struggles to complete the flight test program for its SpaceShipTwo suborbital vehicle, VSS Unity. Virgin Galactic’s net lost was $273 million for 2020, including a $74 million net loss for the fourth quarter.

Virgin Galactic’s stock has been taking a pounding lately. After opening at $10.75 on the first day of trading on Oct. 28, 2019, the stock soared to a high of $62.80. It is now trading at $22.15, having lost all of its gains for the year.

That both Richard Branson, the company’s founder, and Chamath Palihapitiya, the big investor when the company went public, have both sold off large portions of their stock in the past few months has also contributed to the bad press. Both took advantage of the high stock prices and apparently got out when the getting was good.

I fully expect this company to fail in the next year or two. If it doesn’t it surely will never achieve any of the many grandiose promises put forth by Branson for almost two decades.

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Sunspot update: Sunspot activity continues to exceed predictions

1:29 am

The uncertainty of science: On May 1st NOAA updated its monthly graph to show the Sun’s sunspot activity through the end of April 2021. As I do every month, I have annotated it to show the previous solar cycle predictions and posted it below.

In my sunspot update last month I reviewed in detail the range of predictions by solar scientist for the upcoming solar maximum, noting that based on the higher than expected sunspot activity that has been occurring since the ramp up to solar maximum began in 2020, it appeared that all of their predictions might be wrong. The continuing high activity that occurred in April continued that trend.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Resilience successfully splashes down in Gulf of Mexico

12:01 am

Resilience May 1, 2021 returning to Earth

Capitalism in space: SpaceX’s Resilience capsule successfully splashed down tonight in Gulf of Mexico, returning four astronauts from a six month mission on ISS.

The infrared image to the right was taken from an airplane, just after the main parachutes deployed.

They are presently in the process of recovering the capsule and crew, which will take another hour or so. You can watch SpaceX’s live stream here.

Resilience’s next flight will be the first entirely commercial manned orbital flight, presently scheduled for September 15, 2021. Dubbed Inspiration4, it will carry four private passengers for a flight of two to four days. They will not dock with ISS, but instead orbit the Earth freely. SpaceX will also replace the docking port on Resilience with a domed cupola to provide the passengers more room and a great view during their flight.

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SpaceX to attempt first night splashdown since Apollo 8 in 1968

9:30 am

Capitalism in space: Because of weather delays, SpaceX will now attempt the splashdown of Resilience carrying four astronauts from ISS in the predawn hours tomorrow, the first nighttime splashdown in more than a half century, since Apollo 8 in 1968.

Resilience will undock from ISS tonight at 8:35 pm (Eastern), and splashdown in the Gulf of Mexico at 2:57 am (Eastern).

This will also be only the third nighttime landing ever. Besides Apollo 8, which was planned, in 1976 Soyuz 23 failed to dock with the Soviet Union’s Salyut 5 station and came home after only two days in space. That unplanned landing also turned out to be the first and only manned splashdown ever in Russian history, as the capsule landed on frozen Lake Tengiz in Kazakhstan, breaking through the ice, during a blizzard. The two astronauts were safely recovered, though their return to Earth was far from pleasant.

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Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

China’s Long March 4C rocket successfully launches Earth observation satellite

9:15 am

China yesterday successfully launched an Earth observation satellite using its Long March 4C rocket from its interior Jiuquan Satellite Launch Center in inner Mongolia. Its first stage, using toxic fuels, will fall on land somewhere in China.

The leaders in the 2021 launch race:

12 SpaceX
11 China
7 Russia
2 Rocket Lab

The U.S. still leads China 17 to 11 in the national rankings.

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China’s 21-ton Long March 5B core stage to make uncontrolled re-entry

9:33 pm

For the second time in two launches, the 21-ton core stage of China’s Long March 5B rocket is about to make uncontrolled re-entry, with a mass large enough that some part of it is certain to hit the ground.

Where and when the new Long March 5B stage will land is impossible to predict. The decay of its orbit will increase as atmospheric drag brings it down into more denser. The speed of this process depends on the size and density of the object and variables include atmospheric variations and fluctuations, which are themselves influenced by solar activity and other factors.

The high speed of the rocket body means it orbits the Earth roughly every 90 minutes and so a change of just a few minutes in reentry time results in reentry point thousands of kilometers away.

The Long March 5B core stage’s orbital inclination of 41.5 degrees means the rocket body passes a little farther north than New York, Madrid and Beijing and as far south as southern Chile and Wellington, New Zealand, and could make its reentry at any point within this area.

The previous core stage hit the Atlantic Ocean six days after launch in May 2020. Had it come down fifteen to thirty minutes earlier it would have come down on U.S. soil, possibly even on top of the New York metropolitan area.

China’s design for this rocket means that every single launch will result in similar potential disasters. They cannot restart the core stage’s engines after cut-off, so that once it has delivered its payload it is nothing more than a very big and uncontrolled brick that has to hit the ground somewhere.

This is a direct violation of the Outer Space Treaty, which China is a signatory. The treaty makes signatories liable for any damage from an uncontrolled re-entry, and requires them to take action to prevent such events from occurring.

China it appears doesn’t care much about the treaties it signs. The first time could be rung up to a mistake. The second time is intentional and tells us that this country will not honor any of its obligations anywhere else, if it decides it can get away with it.

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NASA suspends Starship lunar lander contract award due to protests

5:16 pm

Because of the protests filed by both Blue Origin and Dynetics, NASA has temporarily suspended the contract with SpaceX for using its Starship spaceship for manned lunar landings.

NASA now has told SpaceX to stop work until GAO determines the outcome. A NASA spokesperson provided this statement to SpacePolicyOnline.com this afternoon. “Pursuant to the GAO protests, NASA instructed SpaceX that progress on the HLS contract has been suspended until GAO resolves all outstanding litigation related to this procurement.” The issuance of the stop work order was first reported by Space News.

GAO has 100 days — until August 4, 2021 — to make a decision.

The odds are very likely that the GAO will reject both protests, but not certain. Meanwhile expect SpaceX to continue development of Starship regardless, as they already have about $6 billion in private investment capital in the bank for this project.

I also will predict that should GAO accept the protests and force NASA to reopen the bids, neither Blue Origin nor Dynetics will be able to make an offer that matches SpaceX anyway. And if they do win a contract, I predict that SpaceX will still launch and land on the Moon before them, based on their track records versus SpaceX’s.

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Ingenuity’s fourth flight today a success

12:37 pm

Ingenuity's 4th flight
For original images, go here, here, here, and here.

As planned, Ingenuity took off early today on Mars at 12:33:20 pm (local Mars time). Data from the full flight has now arrived on Earth, with images that show the helicopter rising, moving about, and then landing. The montage above captures the part of the flight visible from one of Perservance’s cameras.

Apparently Ingenuity was in the air for about two minutes, and landed a bit to the right of its take-off point. We will have to wait for an update from the engineering team to find out exactly what happened.

UPDATE: Mimi Aung, the Ingenuity project manager, posted a report later today:

The helicopter took off at 10:49 a.m. EDT (7:49 a.m. PDT, or 12:33 local Mars time), climbing to an altitude of 16 feet (5 meters) before flying south approximately 436 feet (133 meters) and then back, for an 872-foot (266-meter) round trip. In total, we were in the air for 117 seconds.

The helicopter also took a lot of images, which they are presently in the process of downloading and reviewing.

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