There may be killer asteroids headed for Earth, and NASA has decided to do something about it.
A normally dull star in Ursa Major, the Great Bear constellation, give off an incredible flare while scientists watched, increasing its brightness 15-fold in just three minutes, before returning to normal.
Gluttonous black holes in the center of some galaxies could be precursors to the brightest objects in the known universe.
If you were to ask an Earthbound firefighter how to extinguish a fire, he might tell you to aim for the base of the flame. But what if there is no base? What if the flame is a large, pulsing ball of intense fire?
NASA's Kepler spacecraft has spotted 503 new potential alien worlds, some of which may be capable of supporting life as we know it.
Planets like Skywalker's fictional home of Tatooine in the "Star Wars" movie series might have more potential for habitability than planets in other systems, research suggests.
Unlike the old capsules, Orion — set to make its first test flight in 2017 — can be reused.
Most of the newfound black holes have about five to 10 times the mass of our sun, and resulted from the deaths of giant stars.
Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.
