Light Years Away: The Discovery of 'Exo-Planets'

Tuesday, October 20, 2009

Scientists from the European Space Agency have just discovered 32 "exo-planets" — planets in other solar systems, most of them much larger than Earth. For an explanation of what we know about these planets and what this discovery means to the scientific community, we talk with Miles O'Brien, a freelance science and aviation reporter.



Miles O'Brien

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