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.


Saturn’s rings are very young

Data from Cassini’s last ring-diving orbits has now strengthened the hypothesis that Saturn’s rings formed very recently, just a few hundred million years ago.

Saturn acquired its jewels relatively late in life. If any astronomers had gazed at the sky in the time of the dinosaurs, they might have seen a bare and boring Saturn.

It was then that some sort of catastrophe struck the gas giant. Perhaps a stray comet or asteroid struck an icy moon, tossing its remnants into orbit. Or maybe the orbits of Saturn’s moons somehow shifted, and the resulting gravitational tug-of-war pulled a moon apart. However it happened, two new lines of evidence from Cassini make it clear that the rings were not around in the early days of the solar system 4.5 billion years ago, as scientists had long believed, says Jeff Cuzzi, a ring specialist at NASA’s Ames Research Center in Mountain View, California. “It rules out the primordial ring story,” Cuzzi says. “That’s what it looks like to me.”

At the moment there is no consensus on what might have caused the rings formation so recently.

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3 comments

  • mike shupp

    And why is there a tenuous ring about Jupiter? And a tenuous PARTIAL ring about Uranus? And no relic of such a thing about the Earth, which in theory has had a couple of noteworthy collisions of its own with celestial objects?

    I.e., we could use a more general explanation,

  • ken anthony

    Funny how they use collisions to solve problems that end up creating other problems. Not so funny is how they say it happened with such authority (when speaking to us simple folk.)

  • mike shupp

    Oh, I dunno. My thought is, likely there was quite a bit of debris about the earth back around the time the moon was being put together, but the solar wind and light pressure shoved off the lighter stuff. Stronger solar wind and light pressure might explain why nothing lingered around Mercury and Venus long enough to coalesce into moons. I think there are plausible explanations for moon formation and rings and no doubt other interesting phenomena we just haven’t seen yet.

    But I’m not an Official Planetary Scientist, just this guy mumbling to himself and hand waving. I’d really like to see somebody tackle this stuff more rigorously. Other hand … I’m complaining about a lack of satisfactory explanations for things which NOBODY EVER IMAGINED for the first twenty years or so of my life, so it’s not as if we can argue “Astronomy has failed. Science is all wrong!”

    Nah, it’s blissful to be alive and aware of the progress we’re making. HOSANNAH!

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