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At a conference today

Posting will be intermittent, as I am attending a one day conference [pdf] at the University of Arizona being put on by Lunar & Planetary Laboratory.

Tidbits posted as I hear them (these tidbits do not involve new results that are still embargoed):

-Data from OSIRIS-REX at Bennu and Hayabua-2 at Ryugu have found that while both are rubble pile asteroids, there is evidence that suggests that Ryugu, but not Bennu, was subjected to heating in the past. In other words, it had been cooked.

-We presently possess no meteorites with a chemical make-up that matches the data obtained from orbit around Mercury. This isn’t a surprise, as any material thrown from the surface by an impact would not likely have the energy and velocity required to climb up out of the Sun’s gravitation well and get to Earth. Material from Mars however can easily fall into that well, which is why it is not difficult to find meteorites from Mars on Earth.

– Unlike the Earth, where atmospheric circulation in the north and south hemispheres is independent, Titan’s atmosphere is actually one large Hadley Cell, with flow going from one hemisphere to the other, depending on season.

-The evolutionary changes in Neptune’s orbit over time is thought to have caused the high inclination orbits seen in the objects in the Kuiper Belt, which are a mystery since all these objects must have once been confined within the protoplanetary disk, today’s plane of the solar system.

-Despite finding thousands of candidate exoplanets, Kepler found none in the habitable zone. This does not mean habitable exoplanets are rare, but that there were certain biases in Kepler’s observations that caused this lack.

-There is a lot of research going on to study buried ice/glaciers here on Earth. This work is directly aimed at better understanding the many buried glaciers now thought to exist on Mars.

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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 are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. The ebook can also 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.

 

Autographed printed copies are also available at discount directly from me (hardback $24.95; paperback $14.95; Shipping cost for either: $5.00). Just email me at zimmerman @ nasw dot org.

One comment

  • Dick Eagleson

    If you run into a UofA astronomer named Andrew Tubbiolo, say ‘Hi’ for me. He knows me as “duheagle,” my Disqus ID.

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