The Discovery of Pluto
Pluto was discovered on February 18, 1930, by Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona. Tombaugh was searching for a ninth planet beyond Neptune, based on irregularities in Neptune’s orbit that suggested the presence of another celestial body exerting gravitational influence. After a systematic search, Tombaugh identified Pluto as a faint point of light moving against the background stars.
Photo by NASA on Unsplash
Pluto’s Status as the Ninth Planet
For over seven decades, Pluto was considered the ninth planet in our solar system. It held a special place in the public’s imagination, often portrayed as a cold, distant world at the edge of the solar system. However, as our understanding of the solar system and the objects within it evolved, questions about Pluto’s classification arose.