Add Yahoo as a preferred source to see more of our stories on Google. Study suggests moons orbiting rogue planets could host liquid oceans for billions of years using tidal heating and hydrogen ...
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Rotation may be the key factor separating giant planets from 'failed stars,' say scientists
Heavier than Jupiter, but lighter than a small star, brown dwarfs are difficult to distinguish from giant planets. For years, astronomers have searched for a yardstick that can separate the giant ...
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