The most detailed images yet of Pluto, taken by the Hubble Telescope, reveal a yellow-black sphere whose surface appears to be among the most dynamic in the solar system.
NASA's Kepler space telescope is just beginning its three-year mission to find Earth-like planets in habitable zones around stars. The first new planets it has found, announced Monday, include two so hot they would melt iron.
Peak viewing time for the Orionid meteor shower occurred late last night and early this morning.
The object that hit Jupiter last weekend released thousands of times more energy than the massive Tunguska blast in Siberia in 1908, say astronomers.
A lively account of the ‘exile’ of Pluto, everyone’s favorite ex-planet.
Two new discoveries suggest that sunlike solar systems like ours – with life-hosting planets – are more common than previously thought.