From Publishers Weekly
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as entertaining as it is informative. I am using this info in my novelPublished 12 months ago by Aaron Joseph McCausland
This book is great. If your a lover of science, astronomy, or just space. This is a great thought-provoking book. Read morePublished 14 months ago by Jaime
This is the sequel to "What if the Earth had no Moon." The author uses powerful computer modeling programs to hypothesize how earth might be if there were different... Read morePublished on March 29, 2014 by Carol Watkins
I downloaded this book looking for the information of the second chapter about how Earth would be if it were the moon of a larger planet. Read morePublished on February 2, 2014 by Arturo
A good introduction to various other possible planetary configurations in about the same orbit as Earth and with an Earth-like sun, and how they would seem to the people who lived... Read morePublished on April 25, 2013 by Mopfog
If you love reading books about what ifs of science, or just like reading in general, this book is for you.Published on February 9, 2013 by Michael Schwartz
This is a collection of ten what-if scenarios for alternate earths in various solar systems. It includes the title scenario of Earth having two moons, how we would have gotten... Read morePublished on October 26, 2012 by D. Thompson