Leaving Earth cover

In 2019 I obtained from my former publisher the last 30 copies of the now out-of-print hardback of Leaving Earth. I sold about half of these, and with only a handful left in stock I have raised the price. To get your own autographed copy of this rare collector's item please send a $75 check (includes $5 shipping) payable to Robert Zimmerman to
 

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

I will likely raise the price again when only ten books are left, so buy them now at this price while you still can!

 
Also available as an inexpensive ebook!
 

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.


"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Geothermal energy developers plan to pump 24 million gallons of water into a dormant volcano in Oregon this summer to demonstrate a new way to generate electricity.

Geothermal energy developers plan to pump 24 million gallons of water into a dormant volcano in Oregon this summer to demonstrate a new way to generate electricity.

The irony I glean from this article is this: Pumping water underground to produce energy from geothermal sources (a source liked by the environmental movement) is good. However, pumping water underground to produce energy from gas or oil (energy sources hated by the environmental movement) is bad. And yet, what difference really is there between either effort?

Pioneer cover

From the press release: From the moment he is handed a possibility of making the first alien contact, Saunders Maxwell decides he will do it, even if doing so takes him through hell and back.

 
Unfortunately, that is exactly where that journey takes him.

 
The vision that Zimmerman paints of vibrant human colonies on the Moon, Mars, the asteroids, and beyond, indomitably fighting the harsh lifeless environment of space to build new societies, captures perfectly the emerging space race we see today.


He also captures in Pioneer the heart of the human spirit, willing to push forward no matter the odds, no matter the cost. It is that spirit that will make the exploration of the heavens possible, forever, into the never-ending future.

 
Available everywhere for $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from the ebook publisher, ebookit.
 

3 comments

  • Jim

    There is a line in the article that tells you the difference:
    “Hydroshearing is similar to the process known as hydraulic fracturing, used to free natural gas from shale formations. But fracking uses chemical-laden fluids, and creates huge fractures.”
    One has chemicals, some of them carcinogens, and the other is just water.

  • I’m not sure but “creates huge fractures” is vague , I wonder what the actual difference in size of fractures are they are talking about . Also hydro-fracking doesn’t always use bad chemicals . i would be interested to learn more about the difference between this shearing and fracking

  • Kelly Starks

    > .. fracking uses chemical-laden fluids, and creates huge fractures.” One has chemicals,
    > some of them carcinogens..

    Well all geothermal water sources are rich with carcinogenic chemicals that leach out of the rock, so no big plus there.

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