Why are there moons at the edge of the solar system that cause their rotation axes to fluctuate as if ignoring the laws of ...

The “demoted” dwarf planet Pluto and its largest moon Charon make an unusual pair, and for decades, scientists have been discussing how the binary system—in which each mutually orbits the other—came ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE PHOTO: Pluto's largest moon, Charon, is seen in a high-resolution, enhanced color view captured by NASA's New Horizons ...

Forbes contributors publish independent expert analyses and insights. Amanda Kooser covers the quirky side of science and space. Pluto has five moons, but Charon stands out from the rest. Charon is ...

A full view of Pluto's crescent, captured by NASA's New Horizons team on July 14, 2015, as the spacecraft looked back at Pluto toward the sun. (NASA) (CN) — The question of how Pluto captured its moon ...

Pluto has long been one of the most controversial objects in our Solar System. For decades it proudly held the title of the ninth planet, only to be reclassified in 2006 as a dwarf planet. That ...

Pluto, once our most distant planetary sibling in the solar system and now reclassified as one of many “dwarf” cousins, is set to get a lot less mysterious this summer. NASA’s New Horizons spacecraft ...

Since it was stripped of planetary status, Pluto’s defenders have been fighting the decision – and they’re only getting more passionate Twenty years ago, Pluto got demoted. After a vote by the ...