Astronomers believe the free-floating planet is around 22 percent the mass of Jupiter and lies 3,000 parsecs from the Milky ...
Astronomers just measured the mass of a free-floating planet without a star for the first time ...
New Scientist on MSN
Rare Saturn-sized rogue planet is first to have its mass measured
Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...
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