Pluto was discovered in 1930 by Clyde W. Tombaugh, making it the first known object in the Kuiper belt. It was immediately hailed as the ninth planet. However, [16]: 27 its planetary …

Mar 3, 2010 · On February 18, 1930, Tombaugh discovered the tiny, distant planet by use of a new astronomic technique of photographic plates combined with a blink microscope.

Apr 22, 2025 · Discovered in 1930, Pluto was long considered our solar system's ninth planet. But after the discovery of similar worlds deeper in the Kuiper Belt, Pluto was reclassified as a …

On February 18, 1930, Clyde Tombaugh discovered Pluto. Thus kicked off a hectic time for the entire observatory staff, as they worked furiously to gather as much data as possible about the …

Mar 29, 2025 · On February 18, 1930, astronomer Clyde Tombaugh discovered Pluto at the Lowell Observatory. The search began in 1929, using the information gathered by both Lowell …

This Encyclopedia Britannica list highlights 10 important dates in the exploration of Pluto, from its discovery in 1930 to the flyby of New Horizons in 2015 and beyond.

Feb 18, 2005 · To mark the 75th anniversary of the discovery of the planet Pluto, The Planetary Society presents to its readers the remarkable story of the discovery.

Feb 24, 2025 · As space exploration advances, Pluto reminds us that there is still so much to discover beyond our solar system. Whether considered a planet or not, its discovery was a …

Jan 8, 2025 · Clyde Tombaugh was an American astronomer best known for his groundbreaking discovery of Pluto in 1930. (Image credit: Bettmann / Contributor via Getty Images)

Feb 18, 2022 · On this date in 1930, Clyde Tombaugh, searching for a 9th planet, discovered Pluto. This opened the door to further exploration of the outer solar system.