Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory in Flagstaff. Cold, dark and distant, it was named after the Roman god of the underworld.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory in Flagstaff, Arizona. Cold, dark and distant, it was named after the Roman god of the underworld.

He had discovered "Planet X." Eleven-year-old Venetia Burney Phair later suggested the name Pluto, inspired by the Roman god of the underworld. Astronomers had been searching for this theoretical ...