View Full Version : Was a Fifth Giant Planet Expelled from Our Solar System?

2011-Nov-10, 08:50 PM
Earth’s place in the “Goldilocks” zone of our solar system may be the result of the expulsion of a fifth giant planet from our solar system during its first 600 million years, according to a recent journal publication. “We have all sorts of clues about the early evolution of the solar system,” said author Dr. [...]

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