Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

Aug. 15, 2006 — -- When Clyde Tombaugh discovered Pluto in 1930, he made a mess of the solar system. Pluto was too small, too distant, and of the wrong makeup to qualify as a planet, many ...

Pluto has long been one of the most debated celestial bodies in our solar system. Once classified as the ninth planet, it was redefined in 2006 as a dwarf planet, a decision that still sparks ...

The heart's brightness arises from sunlight reflection, while red patches, formed by tholins, showcase Pluto's atmospheric ...

Scientists studying the interstellar object ‘Oumuamua have proposed that it may be a fragment from a Pluto-like planet beyond ...

Frankly, we don’t keep up much with Pluto and its status as a planet or non-planet. It’s kind of like when, as a young altar boy, the Catholic Church demoted a bunch of saints. We just rolled with the ...

To boldly go where we were not too long ago. Legendary actor William Shatner wants President Trump to restore Pluto to greatness as scientists claim to have found a “new” ninth planet. “So there’s a ...

NASA's Hubble Space Telescope detected material from a Pluto-like body spiraling into a white dwarf star 260 light-years away from Earth. Credit: NASA / JPL-Caltech / Tim Pyle illustration For the ...