July 24, 2011 in Travel
Associated Press photo

A guided tour of the Lowell Observatory as it stops at the Pluto Discovery Telescope, inside the Pluto Dome in Flagstaff, Ariz. Percival Lowell founded the observatory in 1894 to look at Mars and other objects, and it has been the site of some major astronomical discoveries, including the first evidence the universe is expanding, Pluto and the rings of Uranus.


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