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Where is the observatory where Percival Lowell first theorized the existence of Pluto?

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Published in Science Trivia

Flagstaff, Arizona
Albuquerque, New Mexico
Little Rock, Arkansas
Austin, Texas

Flagstaff, Arizona. Founded in 1894 by astronomer Percival Lowell, the Lowell Observatory is located in Flagstaff, Arizona.

 

 

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