A speeding star is the fastest such object in the Milky Way -- and researchers believe that a supernova sent it on its way.
An exploding star directly behind a cluster of enormous galaxies has been split into four images by the light-bending properties of the cluster's gravity.
Newly measured distance to stellar debris in the northern sky links it more firmly to an explosion observers saw in 1181.
Carl Sagan famously said that the death of ancient stars helped to create us. Huh? Here's a quick primer on what he meant.
After more than four centuries, latest data reveals that original supernova blast was more powerful than thought and took place farther away in space.
After more than four centuries, new clues emerge pointing to the origins of Kepler's 1604 supernova.
NASA's Chandra X-ray telescope has captured a picture of a distorted supernova remnant that may contain the most recently formed black hole in the Milky Way.
Northeast of San Diego, storied Palomar Observatory still beckons scientists with its 200-inch telescope. CNET Road Trip 2012 took a look.
Though priced to compete, the Pandigital SuperNova lacks the performance and features to seal the deal.
The space agency is giving up on restoring its planet-hunting spacecraft to full operational capability, but that doesn't mean the mission is over just yet.