@neiltyson @WJeffCrawford http://en.m.wikipedia.org/wiki/Barycentric_coordinates_%28astronomy%29 … remember reading years ago earth moon system orbiting this point not earth's center
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson do ya think earth could have formed from the result of Mars colliding wit anotha palnet Resulting n the unquie combo of elementsThanks. Twitter will use this to make your timeline better. UndoUndo
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@neiltyson@WJeffCrawford. Wow how that can be possible?Thanks. Twitter will use this to make your timeline better. UndoUndo
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