Planets collide... Could (or did) it happen to us?

1points Posted 554 days, 19 hours ago by mikeyc7m

Three U.S. astronomers observed the resulting debris from the collision of Earth-like and Venus-like planets in a faraway galaxy... and speculate that our moon could have been formed from the grazing collision of two planetary embryos.

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Source: http://www.itwire.com/content/view/20803/1066/

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