Pluto: A timeline of 85 years of discovery
PLUTO IN THE SPOTLIGHT A drifting point of light in the constellation Gemini observed between January 23 and 29, 1930, betrayed Pluto's existence. Several observations in the last 85 years have given astronomers a little more information about Pluto, and the July 2015 flyby will offer the closest look yet at the solar system's far-flung satellite.
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