Jupiter's unusually dilute core may be the result of a catastrophic impact billions of years ago with a protoplanet at least 8x the mass of Earth. Share on Facebook (opens in a new window) Share on X ...
(PhysOrg.com) -- A hot Jupiter - a type of celestial object unknown only fifteen years ago - is a Jupiter-sized exoplanet orbiting so close to its host star that its atmospheric temperature is thought ...
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