Over the next two decades, scientists should have results from the three methods of searching for alien life.
A cloud of gas headed for the heart of the Milky Way could provide insight into how black holes are supersized.
The dusty surface of small asteroids is born by extreme temperature shifts between periods of sunlight and darkness, a cycle of drastic changes that break up space rocks over time, scientists say.
An observatory in Chile has caught sight of a cosmic killer: a galaxy that has destroyed at least one of its galactic neighbors.
Strange stripelike features in Earth's magnetic field are caused by the planet's spin, and not by the constant bombardment of solar particles as previously thought, scientists say.
Scientists have made a stunning discovery in the outer realm of the solar system — an asteroid with its own set of rings that orbits the sun between Saturn and Uranus.
A new telescope tool for peering into the cosmos and creating three-dimensional views of the universe has passed its first major test at a European observatory in Chile's high desert.
Information gathered by planetary and deep space craft may soon be streaming back to Earth in the form of a laser rather than by radio waves.
Despite finding a slew of new stellar bodies outside the solar system, NASA's WISE telescope discovered no suggestion of a brown dwarf companion to the sun or a massive hidden planet.
Black holes acting as companions to early stars may have taken more time to raise the temperature of the ancient universe than previously thought, a new study suggests.
Astronomers have gotten their first clear look at galaxy in the very early universe that could have become somewhat like the Milky Way.
From helmets to headsets to football-players-turned astronauts, NASA and the Super Bowl have a number of things in common.
Far from remaining steady, the North Star has grown as much as 4.6 times brighter over the last 2,000 years.
When the supermassive black hole at the center of the Milky Way consumes an incoming cloud of gas, NASA’s Swift telescope will be on the scene.
NASA's Fermi telescope has captured the first gamma-ray measurements of a gravitational lens, a rare natural alignment in which a massive body distorts light from a more distant object.