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Episode 357: More Planets

Play Oct 13•4:43

Extra-solar planets abound. Each week, more planet discoveries are being reported, including those from NASA's Kepler mission and the European Southern Observatory's HARPS instrument. A planet that orbits two stars and a collection of Super-Earths -? planets with mass higher than Earth but lower than that of gas giants -- all were discovered recently. The number of extrasolar planets to dat...

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