Pluto may have lost its status as a full-fledged planet in 2006, but that doesn't mean it's a joke of a world this April Fools' Day and the folks behind Pluto TV want to make that clear. On April 1, ...

Scientists who argue for Pluto to be classified as a planet are getting more ammo for a debate that has raged over the last 15 years. A team of researchers published a study in the scientific journal ...

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HONOLULU (KHON2) — A single day on Pluto is as long as 6.9 Earth days. Today, Feb. 18 is Pluto Day. You may ask yourself why Pluto has its own day since it is no longer considered a planet of our ...

Eight years after being reduced to a "dwarf planet" by the International Astronomical Union in 2006, our far distant cousin is finally getting some real push to be upgraded back to the ninth "planet" ...

Friends and colleagues of the late Clyde Tombaugh, discoverer of Pluto, had this to say Friday about the International Astronomical Union’s decision to reclassify Pluto as a “dwarf planet”: Don’t ...

The debate over whether Pluto should be a planet has apparently been on the mind of the top man at NASA. NASA administrator Jim Bridenstine recently gave his thoughts on Pluto losing its planet status ...

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Many Americans grew up with this as the definitive planetary lineup and created clever mnemonic devices to memorize them in ...