Timeline: Pluto | Timetoast

Feb 18, 1930

Planet X is first discoverd by Clyde Tombaugh

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Period: Feb 18, 1930 to Jul 2, 2013

Pluto
May 1, 1930

Pluto is publicly announced as a new planet

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Jun 22, 1978

James Christy finds a new moon

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Apr 25, 1983

The pioneer 10 spacecraft crossed pluto orbit

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Oct 31, 2005

Pluto was reported to have three moons, not one.

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Jan 19, 2006

NASA launched a spacecraft that was headed to pluto and is not expected to get there until 2015

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