Astronomers studying the Kuiper Belt have detected a strange distortion that could point to an unknown planet lurking far beyond Neptune.
Astronomy on MSN
March 11, 1811: The birth of Urbain Le Verrier
French astronomer Urbain Le Verrier was a tutor and an assistant at the Paris Observatory when the director, François Arago, asked him to investigate irregularities in Uranus' orbit. Using extensive, ...
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