What If the Earth Had Two Moons?

What If the Earth Had Two Moons?

And Nine Other Thought-Provoking Speculations on the Solar System

by Neil F. Comins

288 pages· 2010· ISBN 9780312598921
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An astronomer and author of the best-selling What If the Moon Didn't Exist explores ten examples of what Earth would be like if conditions in the universe were slightly altered, in a fascinating journey into scientific scenarios.

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