NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies.
NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies.
Just a few days after the orbiting observatory was brought back online, Hubble aimed its sights on a pair of gravitationally interacting galaxies.
Scientists hunt for evidence of antimatter -- matter's arch nemesis -- left over from the very early Universe.
New observations from NASA's Spitzer Space Telescope indicate that the nearest planetary system to our own has two asteroid belts.
A 10,000-year-old stellar corpse, called a pulsar, is the first one known that only "blinks" in gamma rays, as discovered by NASA's Fermi Gamma-ray Space Telescope.
Observations of two different systems -- each containing stellar-mass black holes -- are showing astronomers how much they have yet to learn.
When comet Holmes unexpectedly erupted in 2007, professional and amateur astronomers around the world turned their telescopes toward the spectacular event.
Different wavelengths of light swirl together like watercolors in a new, ethereal portrait of a bright, star-forming region.
10.30.08 - NASA managers have announced that they will not meet a February 2009 launch date for the fifth and final shuttle mission to the Hubble Space Telescope.
10.30.08 - The time of Thursday's media teleconference to discuss the status of the shuttle servicing mission to the Hubble Space Telescope has changed to 5:30 p.m. EDT. A news conference at the Kennedy Space Center in Florida to discuss the status of the next space shuttle launch now will begin no earlier than 6:30 p.m.
Audio and video podcasts on NASA missions looking for answers deep into the cosmos.