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Eighteen years ago today, Pluto lost its planetary status in a vote by International Astronomical Union (IAU) members on the final day of their 2006 general assembly meeting. The word "planet" comes ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

Scientists with the Institute for Advanced Study’s School of Natural Sciences say they have found a possible dwarf planet that they have dubbed an "extreme cousin" of Pluto. They say that the possible ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years. On February 18, 1930, just two weeks after his 24th birthday, Clyde Tombaugh ...

WASHINGTON — At a U.S. Senate committee hearing this week, NASA Administrator Jared Isaacman said that he believes Pluto should be classified again as a planet — a distinction that was removed from ...