Super-Earths may be our best bet for finding life beyond our own solar system.
While waiting for high-energy outbursts and cosmic explosions, NASA's Swift Gamma-ray Explorer satellite is monitoring Comet Lulin as it closes on Earth.
There is more than one way to make a dwarf galaxy, and NASA's Galaxy Evolution Explorer has found a new recipe.
The first burst to be seen in high-res by the Fermi telescope had the greatest total energy, the fastest motions and the highest-energy initial emissions ever seen.
NASA will release images on February 15 to more than 100 planetariums, museums, nature centers and schools across the country.
NASA's Great Observatories are celebrating the International Year of Astronomy.
Astronomers using NASA's Swift satellite and Fermi Gamma-ray Space Telescope are seeing frequent blasts from a stellar remnant 30,000 light-years away.
A team of planet hunters is looking for Earthlike planets orbiting the sun's closest neighbor.
02.25.09 - NASA has selected fellows in three areas of astronomy and astrophysics for its Einstein, Hubble, and Sagan Fellowships.
02.19.09 - The first gamma-ray burst to be seen in high-resolution from NASA's Fermi Gamma-ray Space Telescope is one for the record books. The blast had the greatest total energy, the fastest motions and the highest-energy initial emissions ever seen.
Audio and video podcasts on NASA missions looking for answers deep into the cosmos.