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December 15, 2020 Zimmerman Space Show podcast

The podcast for my 90-minute appearance with David Livington on The Space Show on December 15, 2020 is now available here.


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 founder of the Mars Society.


All editions available at Amazon, Barnes & Noble, and all book vendors. The ebook can be purchased direct from my ebook publisher, ebookit, in which case you don't support the big tech companies and I get a bigger cut much sooner. Note that the price for the ebook, $3.99, goes up to $5.99 on September 1, 2022.


Autographed printed copies are also available at discount directly from me (hardback $24.95; paperback $14.95). Just email me at zimmerman @ nasw dot org.


  • wayne

    Great show!

    tangentially, I’ll toss this in here…

    The American Rocketeer: Frank Malina
    JPL history documentary 2010

  • George C

    The show asked for a listener comment on green new deal rocketry. Spacex is well positioned. The propellant generation plan for Mars can work on Earth too. CO2 + H2O + Photon = CH4 + O2. If I may skip the balancing and the technical details which will be familiar to anyone who has studied the readily available web content; with much engineering to be worked out by Spacex.

  • Jay

    A question about what you guys talked about: a privately owned fifth space shuttle? I have read the paper for use of the shuttle’s external tank(s) to make into station, but never a private shuttle.
    I could not find anything on the search engines about this fifth shuttle. This really sounds interesting. Any names or dates would be appreciated.

  • Jay: I am working from memory, but I think Rockwell was the lead in proposing NASA build a private fifth shuttle for commercial purposes. I might have the company wrong, but no matter. The point is that NASA said no, unfortunately.

  • Jay

    Thanks Bob,
    I will look into that.

  • mkent

    Jay: It was even worse than that. Back before ULA there was another Boeing / Lockheed joint venture called United Space Alliance (USA) to process and maintain the Space Shuttle orbiters for NASA. One day the CEO of USA made the public comment that one day in the future they’d like to work out a deal with NASA where they could own the orbiters and sell NASA — and other customers — flights.

    The NASA administrator at the time (I think it was Goldin) was said to be so enraged at that idea that he called the CEOs of Boeing and Lockheed to have the USA CEO fired. He was.

    The Commercial Crew program really changed the culture of NASA.

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