Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

It saw the discovery of dwarf planet Eris and how those very observations led to a new way to describe the Solar System and heralded the eventual change of Pluto’s planetary status. On that ...

Eris is similarly sized to Pluto, but it's three times further from the Sun than Pluto, sitting about 68 AU away. Eris is named after the Greek goddess of discord and strife, and the dwarf planet ...

Brown is the person who discovered Eris, a 10th solar system object that's about 27% more massive than Pluto. Some astronomers disagreed with the decision, with one going so far as to call it ...

Although Seeing in the Dark doesn't directly discuss Pluto, it does celebrate the joy of observing planets. Viewers who watch the show may wonder what happened to Pluto in 2006 and whether any of ...

But Mars abducts Venus, allied with Pluto and Eris, and works out a plan involving a bamboo tower high enough for the soldiers of the Thracian King to attack Jupiter in the Olympus.