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.


OSIRIS-REx on its way back to Earth

OSIRIS-REx today fired its engines and successfully put itself on course for returning its samples from the asteroid Bennu to Earth on September 24, 2023.

The May 10 departure date was precisely timed based on the alignment of Bennu with Earth. The goal of the return maneuver is to get the spacecraft within about 6,000 miles (approximately 10,000 kilometers) of Earth in September 2023. Although OSIRIS-REx still has plenty of fuel remaining, the team is trying to preserve as much as possible for a potential extended mission to another asteroid after returning the sample capsule to Earth. The team will investigate the feasibility of such a mission this summer.

The spacecraft’s course will be determined mainly by the Sun’s gravity, but engineers will need to occasionally make small course adjustments via engine burns.

The science team has already proposed one option, sending the spacecraft on a rendezvous with the potentially dangerous asteroid Apophis shortly after its 2029 close-fly of Earth. It could be that there are other targets as interesting that they need to choose from.

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2 comments

  • Jeff Wright

    This may be the most important mission ever-getting a glimpse of this threat. If possible…maybe do a hard burn in passing so as to be able to image as much surface area so as to do a 3D reconstruction-atlas. Too fast to orbit this body-but if it rotates-you might see more sides.

  • As an orbital mechanic, I make a good plumber, but what does it do in the meantime? It’s not as if it will just sit somewhere waiting for a target to appear.

    The goal of the return maneuver is to get the spacecraft within about 6,000 miles of Earth
    Presumably, the sample capsule can then perform whatever maneuver is needed to drop itself into the atmosphere for braking.

    But won’t the spacecraft get a gravity slingshot of some sort that will fling it off into wherever? I can see the goal of making that “wherever” into something useful, but I think the options would be SEVERELY limited.

    I just looked it up: Luna(*) is ~240,000 miles from Earth, so 6,000 miles is very close – significantly under geosync orbit even- that slingshot effect is going to be dramatic.

    (*) I don’t like “the moon” because there are so many moons. Maybe “the Moon” as a compromise?

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