The Discovery of Pluto

Percival Lowell was a prominent astronomer of the late 19th and early 20th centuries who believed in the existence of a planet beyond Neptune, which he called “Planet X.”
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Percival Lowell was a prominent astronomer of the late 19th and early 20th centuries who believed in the existence of a planet beyond Neptune, which he called “Planet X.”

Written by Kevin Schindler. Narration by Dr. Nicholas B. Breyfogle. Video production by Hannah Keller, Dr. Nicholas B. Breyfogle, and Laura Seeger. 

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Discovering Pluto