“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

Experts postulated a new theory about the largest moon of the dwarf planet Pluto. The planet had five moons among which Charon was the largest and had a diameter of about 754 miles, just over half ...

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 ...

Here are the five most surprising things discovered ... deep canyon at the edge of the Solar System. But on Charon, Pluto's nearest moon, they found this most familiar of geological features.