Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

The vote came amid a larger debate over what makes a planet, and if being round with moons ... name of scientific fun!" Pluto TV event organizers wrote. "If you’re a believer in Pluto’s ...

It seemed an appropriately dark name for a planet on the dusky fringe ... rotating instead of gracefully pirouetting. (Read “Pluto’s Moons Dance to a Random Beat.”) ...

An curved arrow pointing right. See what's so weird about Pluto and its moons. Produced by Emmanuel Ocbazghi. Original reporting by Jessica Orwig. Follow BI Video: On Facebook More from Science ...

There's also the Clarke and Kubrick mountains named for the author (Arthur C. Clarke) and director (Stanley Kubrick) of "2001: A Space Odyssey." There's also Alice for "Alice in Wonderland," Argo ...

and some planets have many moons - Saturn has more than 50. The Earth has just one moon - the Moon. Pluto is a dwarf planet. As the name suggests, a dwarf planet is smaller than a planet.

Pluto is too far away from Earth to be seen with the naked eye. If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that ...

Whether they show the moons of Jupiter, the rings of Saturn, or the icy surface of Pluto, these captivating ... instruments are magnetometers. As their name suggests, they are devices that detect ...