New solar system formation models indicate that Jupiter's foray robbed Mars of mass
Sunday, June 5, 2011 - 14:30
in Astronomy & Space
Planetary scientists have long wondered why Mars is only about half the size and one-tenth the mass of Earth. As next-door neighbors in the inner solar system, probably formed about the same time, why isn't Mars more like Earth and Venus in size and mass? A new paper provides the first cohesive explanation and, by doing so, reveals an unexpected twist in the early lives of Jupiter and Saturn as well.
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