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  1. Pluto - Wikipedia

    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 status was questioned …

  2. Pluto Facts - NASA Science

    Apr 22, 2025 · It is located in the distant Kuiper Belt. 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 …

  3. The Story of How Pluto Was Discovered 95 Years Ago

    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 and Pickering.

  4. History of Pluto - Lowell Observatory

    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 new planet.

  5. Pluto discovered | February 18, 1930 | HISTORY

    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.

  6. 10 Important Dates in Pluto History | Britannica

    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.

  7. Clyde Tombaugh: the astronomer who discovered Pluto

    Jul 9, 2024 · Dwarf planet Pluto was discovered by Clyde Tombaugh at Lowell Observatory in Flagstaff, Arizona, US on 18 February 1930. Though he would go on to earn degrees in astronomy from the …

  8. Pluto: The Discovery of a Planet - The Planetary Society

    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.

  9. The Discovery of Pluto and its Historical Context - Definition ...

    Aug 16, 2025 · Pluto was discovered on February 18, 1930, by astronomer Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona. Its discovery was a significant milestone in the field of …

  10. Clyde Tombaugh: The astronomer who discovered Pluto - Space

    In 1928, the amateur astronomer was offered a job at Lowell Observatory in Arizona, where he discovered Pluto. In 1934, he married Patricia Edson. They had two children, Annette and Alden.