A look ahead to Sunday’s comet fly-by of MarsOn Sunday Comet Siding Spring will whiz past Mars at a distance of only 82,000 miles.
The article gives a good overview of where look to see the comet if you own a telescope, as well as what the many spacecraft at Mars are going to do to both view the fly-by as well as protect themselves from it.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
On Sunday Comet Siding Spring will whiz past Mars at a distance of only 82,000 miles.
The article gives a good overview of where look to see the comet if you own a telescope, as well as what the many spacecraft at Mars are going to do to both view the fly-by as well as protect themselves from it.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
In the trilogy, “Red Mars, Green Mars, Blue Mars” one of the methods used to bring water to Mars was to steer comets into an intercept, then blow them up into small pieces upon reentry. There were some other very interesting ideas in the series as well.
Life imitating fiction. I also read the series and enjoyed it very much. Real data mixed with good science and a touch of fantasy to make it almost plausible. (The terraforming of Mars with space elevators I mean.)
In real life, Mars is not dense enough to hold a thick atmosphere. So I am hoping the author will tell the terraforming story for “White Venus” and ” Jeweled Saturn”.
Venus is earths evil twin but has nearly the same gravity. With 90 earth atmospheres, it would probably terraform into a water planet. I’m thinking airogell constructed carbon fiber cities suspended from hydrogen balloons floating in the green zone miles above the hot surface. Since Venus’s day is longer then it’s Year, a space elevator probably wouldn’t work.
Saturn on the other hand would be a fun challenge. With gravity only 10% more than Earths, humans could live there without much discomfort.