Pluto was once dismissed as a frozen leftover at the edge of the solar system, until we finally got a close-up look. What we ...
It's not just the air on Pluto that is cold -- the volcanoes on the dwarf plant are frigid, too. According to a group of scientists on NASA's New Horizons mission team, which recently turned up new ...
Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of darkness; after all, Pluto is the Roman equivalent of the Greek God Hades.