A large asteroid that initially had scientists worried has only a small chance of striking the Earth in 2040, says NASA.
Antarctica was once as warm as Iceland - warm enough for vegetation and even trees to thrive, a new study has found.
NASA’s Cassini spacecraft has spotted long-standing methane lakes near the equator of Saturn’s moon Titan.
Following a successful launch, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has begun its mission to discover secrets of buried black holes and other exotic objects.
NASA has decided its precision landing gear is accurate enough to let it land the Curiosity Mars rover a lot closer to its target than expected.
NASA scientists say they've made a discovery in the Arctic Ocean 'as dramatic and unexpected as finding a rainforest in the middle of a desert'.
NASA believes it's spotted the dappled light of the first objects in the universe with the best precision yet.
A new video shot by NASA’s Dawn spacecraft depicts a dappled, variegated surface of the giant asteroid Vesta.
NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) may be the size of a refrigerator, but it will undoubtedly help astronomers discover some of the most interesting aspects of our universe.
NASA is preparing to deploy a pair of unmanned aircraft above stormy skies to help forecasters improve their understanding of hurricane formation and intensity changes.
NASA's NASA's Solar Dynamics Observatory (SDO) is hoping to use Venus's transit of the sun on June 5 to better calibrate its instruments.
NASA's Grail mission to study the moon from crust to core has completed its main task ahead of schedule, gathering information about the internal structure and evolution of the moon in unprecedented detail.
NASA's a bit concerned that the rush to the moon created by Google's Lunar X Prize could damage historic sites there.
MIT and NASA scientists believe they've found a planet, 1,500 light years away, that appears to be disintegrating from the heat of its parent star.
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) indicate there are about twice as many potentially hazardous asteroids (PHAs) in lower-inclination orbits than previously believed.
NASA, along with a number of international partners, is currently working on the HIFiRE (Hypersonic International Flight Research Experimentation Program) program to advance hypersonic flight.
The asteroid Vesta is more like a planet or a moon, new data from NASA's Dawn spacecraft shows.
Our sun is moving through the Milky Way more slowly than thought, new data from NASA's Interstellar Boundary Explorer (IBEX) satellite shows.
Scientists using the Herschel Space Observatory have discovered that galaxies with the most powerful, active black holes at their heart produce fewer stars.
NASA's Mars Reconnaissance Orbiter (MRO) has revealed that sand dunes on Mars can put on a surprising turn of speed.