SEE ALSO: 4 rad dwarf planets that aren't Pluto "The icy worlds beyond Neptune trace how the giant ... dwarf planet in general because of its huge distance from Earth. Scientists have studied ...
Clues emerge from unexplained gravitational anomalies far beyond Neptune. A radical hypothesis reimagines Planet Nine not as a planet but as a primordial black hole—compact, ancient, and ...
CAMBRIDGE -- Discovery of a new planet beyond the orbit of Neptune was reported by the Harvard observatory Thursday. The Lowell observatory in Flagstaff, Arizona, made the discovery officials ...
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