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.


“Flow-like” feature in the Martian lowlands


Click for full image.

Cool image time! The photo to the right, rotated, cropped, reduced, and brightness-enhanced to post here, was taken on July 6, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

This is an uncaptioned image, labeled by the MRO science team as a “Flow-Like Feature in Chryse Planitia,” suggesting that they themselves are not exactly sure about what we are looking at. The latitude is 19 degrees north, which is a bit too far south for finding glacial features. Moreover, the craggy look of the ground here does not suggest an eroding glacier, but of eroding bedrock.

We could be looking at a volcanic feature, but this location is very far from Mars’ volcano regions. Nonetheless, another high resolution image, taken just to the west of this photo and given the exact same label, shows similar geology, and does strongly invoke a look of corroded lava flow.

The overview map below gives the context.

Overview map

Chryse Planitia is the lowland northern plain that received the drainage down from the giant Martian volcanoes, coming from both Valles Marineris and Kasei Valles. It is also the place that two American landers put down, Viking 1 in 1976 and Pathfinder in 1997. In fact, this image, indicated by the white box, is only about 108 miles west of the Mars Pathfinder landing site where the rover Sojourner roved for almost three months. The photo below shows Sojourner up against a boulder, the image taken from Pathfinder. The ramp that the rover used to get to the surface can be seen on the bottom left.

Sojourner rover on Mars, as seen from Mars Pathfinder

The results from Pathfinder and Sojourner suggested the presence of melted ejecta from impacts, melt from volcanic processes, and sedimentary and rounded rocks suggesting water processes.

None of this of course clarifies the flow feature in the cool image above, as all these process could have created this feature. It only adds to the mystery.

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2 comments

  • Rod

    I don’t know why 19 degrees south would be too close to the equator. According to theory, Mars’ inclination varies wildly over the eons. Suppose, a billion years ago, the tilt was 70 degrees, and we could consider 19 degrees south to have near polar conditions. Just a thought.

  • Rod: I think you are new here. Do a search on Behind the Black for glaciers and Mars. You will learn a lot.

    Start however here: The glaciers of Mars. At this moment, scientists have found glacial features in large numbers in the latitude bands from 30 to 60 degrees. Farther south the evidence of water ice peters out, though not in every place.

    At 19 degrees it is unlikely this is glacial. Moreover, if you look at the many cool images that will come up in that search, you will begin to understand why this does not look like a glacier to me. The features aren’t the same as seen in the many other examples.

    However, you are right about Mars’ inclination, or obliquity as the scientists have told me is the correct term. It changes a lot over eons, from 11 degrees to 60 degrees. Today it is about 25 degrees. Things would have been very different when that obliquity was different. Once again, read some of those other links for info on what is presently believed.

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