Conscious Choice cover

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 founder of the Mars Society.

 

Available everywhere for $3.99 (before discount) at Amazon, Barnes & Noble, and all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.


Mars rover Update: March 4, 2020

Panorama looking south and uphill
Click for full resolution.

Curiosity

[For the overall context of Curiosity’s travels, see my March 2016 post, Pinpointing Curiosity’s location in Gale Crater.

For the updates in 2018 go here. For a full list of updates before February 8, 2018, go here.]

Map of Curiosity's travels

Since my last rover update on January 13, 2020, Curiosity has finally moved on from the base of Western butte, where it spent more than a month drilling a hole and gathering a great deal of geological data. Rather than head downhill and around the plateau and back to its planned route (as indicated by the red line in the map to the right), the Curiosity science team decided to push upward and onto the Greenheugh Piedmont (as indicated by the yellow line).

They had always planned to reach the top of this plateau, but not for several years. First they were going to head east to study a recurring slope lineae (see my October 2019 update), an example of a dark streak that darkens and fades seasonally and could provide evidence of water seepage from below ground.

Instead, they decided the close proximity of the top of the piedmont and its geology was too tempting. The piedmont is apparently made up of a layer that is very structurally weak, and breaks up easily, as you can see by the panorama above. It also appears to sit on softer, more easily eroded material, which thus accentuates this break up. If you look at the left part of the panorama you can see what I mean. The piedmont layer there is the thin unbroken layer sitting on what looks like sand. As that sand erodes away the layer quickly breaks into small pieces, as shown in the rest of panorama.

Traveling on the piedmont will likely be difficult and threaten Curiosity’s wheels. I suspect this reality prompted them to choose to get to the top and obtain data now, rather than wait several more years of rough travel that might have made access to the piedmont difficult if not impossible.

They presently sit just below the top, and are studying their options before making that last push.

Curiosity looks out over Gale Crater
Click for full image.

At this location the rover sits on a 30 degree slope, only slightly less steep than the 32 degree record slope achieved by Opportunity at Endeavour Crater in March 2016. The photo to the right, showing Curiosity’s robot arm back-dropped by the distant floor and rim of Gale Crater, has been rotated to show that steep slope.

To celebrate their success in the past few months exploring these higher reaches of the foothills of Mount Sharp, today they released a spectacular panorama, with the highest resolution of any yet produced, looking downhill from the base of Central Butte, taken back in October and November during the several months they had spent at that location. A lower resolution version, showing Curiosity in the foreground, is below, reduced even more to post here.
Panorama looking north across Gale Crater
Click for full resolution.

Make sure you click on the full image. It really puts you there, on Mars, looking north and out across Gale Crater.

Other rovers

I have been posting updates on the Chinese Yutu-2 rover and Chang’e-4 lander on the far side of the Moon, as they happen, the most recent of which were on February 27, 2020 and March 2, 2020. Both rovers appear to be in good operating condition, despite having survived fifteen lunar days and nights, five times more than originally planned.

This coming summer a flock of new rovers plus one orbiter are going to launch for Mars. The U.S. will send another Curiosity-class rover, with its official name to be announced tomorrow, to Jezero Crater. China is also supposed to send an orbiter, lander, and rover, but almost no updates about this project have been released recently.

A joint Europe-Russian mission, ExoMars2020, is supposed to send the rover Rosalind Franklin to Mars, but technical problems could very well delay that rover’s launch by two years. We shall find out by the end of March.

Finally, the United Arab Emirates intends to send its Hope orbiter to Mars this summer. Built with Indian help and launched by Japan, the UAE hopes that this mission will help them diversify their economy and inspire their youth to do more than simply collect checks from their oil profits.

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3 comments

  • wayne

    ah… here we go. this just in….:

    Mars Curiosity
    1.8 billion pixel panorama
    JPL March 4, 2020
    https://youtu.be/X2UaFuJsqxk
    3:09

    “The panorama showcases “Glen Torridon,” a region on the side of Mount Sharp that Curiosity is exploring. The panorama was taken between Nov. 24 and Dec. 1, 2019, when the Curiosity team was out for the Thanksgiving holiday. Since the rover would be sitting still with few other tasks to do while it waited for the team to return and provide its next commands, the rover had a rare chance to image its surroundings several days in a row without moving.”
    ” Composed of more than 1,000 images and carefully assembled over the ensuing months, the larger version of this composite contains nearly 1.8 billion pixels of Martian landscape.”

  • Wayne: Uh, did you even read my post?

  • wayne

    Mr. Z–
    duh…probably not as closely as I should have…

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