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’ icy high latitudes

Mars' icy high latitudes
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on November 29, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled simply as “periglacial survey,” it is one of almost two hundred such images taken by MRO over the years, almost all of which are in the high latitudes above 60 degrees, with most being in the southern hemisphere. Most appear to be close to or above Mars’s Arctic Circle, which means these are locations that will see little or no sunlight for a portion of the year.

I have been unable to contact the scientists doing this survey, so I will have to make an educated guess as to its purpose and goals. “Periglacial” refers to the outer fringes or margin of a glacier or large ice sheet. Thus, in the context of this survey, the scientists appear to be studying places where they think the Martian high latitude ice sheets are beginning to sublimate away. Today’s photo is a good example. It is located at 67 degrees south latitude, in the southern cratered highlands but in an area that appears to be relatively free of craters. Instead, the terrain appears somewhat flat with only periodic depressions and scarps. The MRO context camera photo below of the same area, rotated, cropped, and expanded to post here, illustrates this.

Context camera image of region
Click for full image.

The black box marks the area covered by the close-up photo. As you can see, what looked like an east-west channel in the close-up was merely a longer enclosed depression.

In fact, the whole region reminds me of what you see if you finely spray hot water on a sheet of ice. Patches begin to melt away randomly, producing holes and depressions.

In the close-up one also gets the strong sense that everything here is either frozen ice or is dust and dirt that is impregnated within it, so much so that everything has become smoothed as the ice has gone through numerous cycles of freezing and sublimation over the eons. There are no dunes, and though the dark streaks indicate dust devil tracks there certainly appears to be little surface dust.

The photo and its features, as well as this entire periglacial survey, strongly invokes a vision of a very icy Mars in its high latitudes. While scientists have found many glacial features in the latitude bands from 30 to 60 degrees latitude, what this photo suggests is that at higher latitudes the ground is almost entirely covered by an ice sheet.

As I’ve said before, Mars is a desert like Antarctica, icy, cold, and very dry. In building future colonies that coldest place on Earth probably gives us the best analogy for the environment on Mars.

Readers!
 

Please consider donating to Behind the Black, by giving either a one-time contribution or a regular subscription, as outlined in the tip jar below. Your support will allow me to continue covering science and culture as I have for the past twenty years, independent and free from any outside influence.


Your support is even more essential to me because I keep this site free from advertisements and do not participate in corrupt social media companies like Google, Twitter, and Facebook. I depend wholly on the direct support of my readers.


You can provide that support to Behind The Black with a contribution via Patreon or PayPal. To use Patreon, go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation. For PayPal click one of the following buttons:
 


 

Or with a subscription with regular donations from your Paypal or credit card account:


 

If Patreon or Paypal don't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
 

Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652

3 comments

  • Max

    I have often talked about living quarters created under the ice by melting holes in the carbon dioxide ice and extracting the plentiful water, methane, nitrogen for necessary components for sustainable life on Mars.
    This is exactly the landscape that I pictured in my head for the first Mars colony. The hard to find necessary resources “here” can supply other colony locations and research stations across Mars indefinitely. (or just until other resources have been located and infrastructure built and go online)

    Mostly dust free, Iron meteorites littering the ice surface, not so rough to be unmanageable for robotic metal detectors.
    Coolant for nuclear reactors easily available for a large manufacturing facility. (heat necessary for underground farming/sunbathing and hot tubs…)
    Hydrogen air ships will do a lively business providing finished materials in trade to the distant locations and research stations.
    I almost wish I could be there.

  • Brad

    The permafrost-zone of Mars?

  • Brad: Yup, I think you are correct.

Readers: the rules for commenting!

 

No registration is required. I welcome all opinions, even those that strongly criticize my commentary.

 

However, name-calling and obscenities will not be tolerated. First time offenders who are new to the site will be warned. Second time offenders or first time offenders who have been here awhile will be suspended for a week. After that, I will ban you. Period.

 

Note also that first time commenters as well as any comment with more than one link will be placed in moderation for my approval. Be patient, I will get to it.

Leave a Reply

Your email address will not be published. Required fields are marked *