Did We Steal Our Moon From Venus?
Earth has a moon. Mars has two. Jupiter has nearly 50. But Venus? No moon. Stevenson's theory is that the Earth pulled Venus's moon out of Venus orbit and into our own. The moon's size suggests this is possible; calculations have indicated that a collision would require two fairly large bodies moving at an enormous speed, and at a very specific angle, otherwise one or both of the two original objects would be pulverized. The moon is much larger compared to our planet than other satellites are to their planets.
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Did Venus Give Earth the Moon? Wild New Theory on Lunar History By Katia Moskvitch, SPACE.com Contributor September 27, 2013 11:57am ET This illustration shows the still-molten moon just after its formation about 4.5 billion years ago. Credit: NASA Goddard Space Flight Center View full size image LONDON - The Earth's moon may be a present...
( via popsci.com )
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