Author: Robert Zimmerman

Skiing dry ice boulders on Mars

2:47 pm

Dune slope, with grooves, in Russell Crater
Click for full image.

Cool image and video time! The image to the right, cropped and reduced to post here, shows something that when I spotted it in reviewing the newest image download from the high resolution camera on Mars Reconnaissance Orbiter (MRO), I found it very baffling. The photo was taken on March 3, 2020, and shows an incredible number of linear groves on the slope of a large dune inside Russell Crater, located in the Martian southern highlands at about 54 degrees south latitude.

If these were created by boulders we should see them at the bottom of each groove. Instead, the grooves generally seem to peter out as if the boulder rolling down the slope had vanished. Making this even more unlikely is that the top of the slope simply does not have sufficient boulders to make all these groves.

The image was requested by Dr. Candice Hansen of the Planetary Science Institute in Tucson, Arizona, who when I emailed her in bafflement she responded like so:
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Shutdowns forcing hospitals to cut staff during Wuhan panic

1:31 pm

This makes perfect government sense: The shutdowns that our governments have imposed on people and businesses nationwide due to the Wuhan panic has forced hospitals to cut staff and shorten hours.

The article describes the growing collapse of medical services caused by the state-imposed lockdowns in Ohio, Massachusetts, Kentucky, Connecticut, South Carolina, Tennessee, New Jersey, Oregon, Virginia, and Arizona. That’s only ten states, but it is very likely the remaining states are experiencing the same problems, as described in the article:

The Connecticut Children’s Medical Center is furloughing 400 across its health system as a result of surgeries being delayed, which has caused patient volumes to plummet, resulting in millions of dollars of lost revenue, according to the Hartford Courant.

The number of elective cases at Prisma Health in South Carolina has fallen by over 75% in two weeks. CEO Mark O’Halla issued a letter to employees informing them of furloughs, adding that they will be able to file for unemployment and apply for open positions at the hospital.

Two-hundred healthcare workers in Tennessee are being furloughed as a result of “dramatically reduced” hospital visits, which means a loss of revenue, according to the Tennessean.

We need to bankrupt ourselves in order to save us! Thank you government and centralized rule!

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First estimate of the cost of the Wuhan panic shutdown

12:48 pm

The estimated lose to the U.S. economy due to the shutdown over the Wuhan panic is now estimated at $32 trillion, more than the entire annual gross national product for the country.

That number is of course preliminary, but for a first guess I think it is probably low, especially because it does not include the following:

  • Lost opportunity cost for businesses
  • Lost opportunity cost for individuals who had to delay dreams, plans, etc.
  • The loss of freedom (priceless)
  • The cost of not educating millions of students and falling further behind in academic standards

It also assumes we get back to work relatively soon. Should the shut down extend through May, I think the Great Depression will appear like a lark in comparison.

Note that the overall social cost of this panic and shutdown cannot be measured, as it is also establishing new social distancing customs that are probably overwrought and counter-productive for a healthy society.

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SpaceX bans use of Zoom by employees

10:18 am

For security reasons, SpaceX has banned its employees from using Zoom for video conferencing or communications.

Elon Musk’s rocket company SpaceX has banned its employees from using video conferencing app Zoom, citing “significant privacy and security concerns,” according to a memo seen by Reuters, days after U.S. law enforcement warned users about the security of the popular app.

…The Federal Bureau of Investigation’s Boston office on Monday issued a warning about Zoom, telling users not to make meetings on the site public or share links widely after it received two reports of unidentified individuals invading school sessions, a phenomenon known as “zoombombing.”

Investigative news site The Intercept on Tuesday reported that Zoom video is not end-to-end encrypted between meeting participants, and that the company could view sessions.

It appears that Musk’s concern is that someone might use Zoom’s security weaknesses to do some industrial spying. Based on what I have read about Zoom, it seems to me that Musk’s concern is valid.

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ESA resumes science operations on orbiting spacecraft

10:08 am

The European Space Agency (ESA) has reactivated four science spacecraft, two in Mars orbit and two headed for the Sun, after putting them in safe mode because the agency had shut down many operations due to one person becoming infected with COVID-19.

Fortunately, the initial case remained the only one as the people in quarantine did not develop any symptoms. “When we shut down science, we established very clear criteria to decide when it would restart, and as of this weekend we have begun to gradually bring the missions back into their normal state,” adds Paolo.

…Because of preventative measures taken early to limit the chance of infection spreading, the situation at ESOC is now stable. The few individuals that periodically go on site are predominantly working in isolation, and generally do not even meet each other. If they have to be in the same room, they follow very strict social distancing rules and protections.

It remains unclear whether this reactivation means there will be sufficient staffing for the fly-by of Earth by ESA’s BepiColumbo Mercury mission on April 10th. The information at the link is very encouraging, but it is also an official statement from ESA. Getting the real truth from such statements is not guaranteed.

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Momentus wins contract with Taiwan university

9:58 am

Capitalism in space: Momentus, a company that sells a small upper stage designed to provide orbital transportation for cubesats, has won a new contract with Taiwan university.

Under the agreement, Momentus will provide in-space transportation for a satellite mission called Intelligent Remote-Sensing and Internet Satellite (IRIS)-A. Odysseus is providing pre-launch testing and arranging launch services for the IRIS-A mission developed by Taiwan’s National Cheng Kung University. IRIS-A is designed to test technology to improve the quality of downlink signals.

In spite of the COVID-19 pandemic, Momentus executives say they are continuing to sign up customers interested in traveling on Vigoride, a vehicle to move small satellites from their drop-off point in orbit to their final destination.

The article does not say what rocket will launch the cubesat plus Vigoride, but Momentus has a contract with SpaceX to launch five cubesats as secondary payloads, so this is probably how the payload will reach orbit.

Normally cubesats launched as secondary payloads on big rockets like the Falcon 9 have very limited options on the orbits they can reach. The primary payload’s requirements are what rules. The idea here is Vigoride takes over once deployed and moves the satellite to the exact orbit needed. If Momentus is successful in doing this it will give cubesat makers many more launch options. It will also put more competitive pressure on the smallsat rockets like Rocket Lab’s Electron, since its main selling point is how it can put cubesats where they want to go, something that bigger rockets have not been able to do, up until now.

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States begin push to end voting at polls

8:50 pm

The rigging of elections begins: As part of the Wuhan panic, state legislators (as well as Joe Biden, the present Democratic Party front runner for president), are now pushing to change election laws to allow more voting by mail, and to even eliminate in-person voting at the polls.

States are weighing measures to change voting rules in November’s presidential election as they struggle with social-distancing orders during the worldwide coronavirus outbreak, according to a report Tuesday. “More people who vote early or vote by mail, means fewer people standing in line on election day,” California Secretary of State Alex Padilla told the Axios news website.

But the effort to keep voters from going to the polls in person Nov. 3 faces legislative and financial roadblocks. The price for states to change their methods of voting could pass $2 billion, Axios said.

Of course, they are completely sincere about their desire to protect us from this evil virus. None of them would ever take advantage of an election conducted entirely by mail to rig the results. Never! How could anyone think such a thing?!

I mean, really, these are the same kinds of people who wrote the FISA court legislation, and then administered it perfectly! They are also the same kind of governmental people who run the IRS and never use it to go after people they don’t like, for political reasons. Never!

I await the coming our perfect government-run utopia. All will be well. Just accept it.

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Enigmas on Mars

2:46 pm

Enigmas on Mars
Click for full image.

Cool image time! The photo on the right, cropped and reduced to post here, is a perfect example of the difficulty of explaining the alien landscapes on Mars, based on orbital imagery. It was taken by the high resolution camera of Mars Reconnaissance Orbiter (MRO) on January 23, 2020.

In this one image alone we have the following strange features, all within an area about 8 by 11 miles in size:

  • Several small very obvious pedestal craters (near the top right), some located inside depressions. Pedestal craters are created because the surrounding terrain eroded away around them. Since these are pedestals, however, why are they also inside depressions?
  • Two large circular mesas that appear to vaguely have terraced erosion. These might also be pedestal craters, but maybe not. They also sit much higher than the pedestal craters above. Either way, the mesas remained while the terrain around them eroded away.
  • Several normal craters with a series of circular features within each. At this latitude, 34 degrees south, it is possible these craters are filled with buried ice, what scientists call concentric crater filled glaciers.
  • A light-colored string of ridges aligned to almost look like a kite with tail. The light color says this ridge is not made up of the same material as the circular mesas and pedestal craters, but it too was not eroded away.
  • A number of small bean-shaped depressions (just south of the biggest circular mesa and near the top left). Don’t ask me what caused them. I have no idea.

Overview map

The spot is located in the Martian southern cratered highlands, as shown by the blue cross in the overview map to the right. Complicating its geological history is that it sits inside a very gigantic very old and degraded crater, with numerous newer smaller impacts overlaid on top. Any explanation needs to include these impacts, and the ejecta from them.

If you click on the image and study the full resolution photograph, you can find even more enigmatic features. For most there is a reasonable geological theory. Putting them all in one place and somehow getting all those different explanations to fit together however is far more difficult.

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The lack of context during the Wuhan virus panic

12:51 pm

Link here.

This editorial tries to remind people that when you look at the whole picture, the coronavirus epidemic simply does not yet justify the fear it has caused, or the over-the-top authoritarian measures politicians have imposed. For example:

On its own, 3,000 fatalities [from COVID-19 as of yesterday] might seem like a tremendously large number. But that’s before you learn that an average of 7,700 people die in the U.S. every single day. Which means that over the past week, when the coronavirus took 2,000 lives, nearly 54,000 people died from other causes. [emphasis in original]

They then list the many other preventable causes of death that each year kill far more people than the coronavirus, and yet pass entirely unnoticed, with no panic, fear, or government-imposed edicts. The mortality numbers for other infectious diseases I find especially revealing:

  • 35,000: antibiotic-resistant bacteria
  • 40,922: blood poisoning resulting from bacteria
  • 55,672: flu and pneumonia

Once again, these are numbers for deaths that occur routinely, each year. I don’t remember the government declaring martial law over these. Do you?

COVID-19 could still be as bad as our panic-stricken leaders say, with predictions of between 100,000 to 200,000 deaths this year. I remain very skeptical. Such numbers would be from two to four times higher than the worse flu epidemic. The data from too many sources suggest this prediction is absurdly high.

And even if it is correct, I suspect these deaths will not be additional mortality, on top of all other causes. Instead, I predict that overall the mortality will be about the same, if not less, because of the imposition of martial law. Unable to go out, there will be fewer traffic accidents and flu infections, for example, causes that routinely kill a lot of people.

Thus, the overall death numbers will not be significantly different than we normally see, a result that will hardly justify the panic that has gripped everyone.

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Triple impact on Moon

11:27 am

Impact craters Messier and Messier A on the Moon

Cool image time! A new image release from Lunar Reconnaissance Orbiter (LRO) takes a look at the impact process that created the crater Messier and its neighbor crater Messier A. The photo to the right, cropped to post here, shows both craters.

Take a close look at Messier A. It is actually a double crater itself. From the release:

Messier A crater, located in Mare Fecunditatis, presents an interesting puzzle. The main crater is beautifully preserved, with a solidified pond of impact melt resting in its floor. But there is another impact crater beneath and just to the west of Messier A. This more subdued and degraded impact crater clearly formed first.

Did these three craters happen as separate events. According to the data, it appears no. Instead, they might have all been part of a single rain of asteroids, all occurring in seconds.
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