On May 1st, 1930, a significant discovery was made that forever changed our understanding of the solar system. The object that officially joined our solar system on this day was none other than Pluto, the ninth planet at the time. Pluto was discovered by American astronomer Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona. It was initially classified as the ninth planet in our solar system, a title it held for over 75 years. However, in 2006, the International Astronomical Union reclassified Pluto as a "dwarf planet," due to its size and orbit differing from the traditional definition of a planet. Despite its reclassification, Pluto continues to capture the imagination of people around the world. Its distant location and unique characteristics make it a fascinating subject of study for astronomers and space enthusiasts. If you want to learn more about Pluto and its place in our solar system, there are plenty of resources available online. Websites like NASA's official page on Pluto (https://solarsystem.nasa.gov/planets/dwarf-planets/pluto/overview/) provide detailed information about the dwarf planet's history, composition, and orbit. Additionally, you can explore the New Horizons mission, which provided unprecedented images and data about Pluto during its flyby in 2015. The official New Horizons website (https://www.nasa.gov/mission_pages/newhorizons/main/index.html) offers a wealth of information about the mission and its groundbreaking discoveries. Overall, Pluto's official entry into our solar system on May 1st, 1930, marked a significant moment in astronomical history. While its status as a planet may have changed, its importance and intrigue have not diminished. If you want to delve deeper into the world of Pluto and the mysteries of the outer solar system, there are plenty of resources available to satisfy your curiosity.

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