The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

Pluto’s mysterious far side may conceal towering ice formations, according to research offering clues about the dwarf ...

Giant, ridge-like structures of methane ice, known as "bladed terrain," may be much more abundant along Pluto's equator than ...

NASA is plotting a new mission that could be the one to finally uncover alien life in the universe. Or, it may uncover a ...