The mystery of dark matter could be solved in as little as 10 seconds. When the next nearby supernova goes off, any gamma-ray ...

The Death Valley Dark Sky Festival is scheduled Feb. 21-23 with astronomy programs each night and educational presentations ...

If dark matter is discovered through one of these experiments or another that hasn’t yet been dreamed up, it could ...

For millions of years following the Big Bang, after the universe’s roiling soup of particles had cooled, the cosmos was a ...

HE0435-1223, a lensed quasar, is surrounded by four images created by a foreground galaxy, making it one of the five best lensed quasars discovered. Hubble's image of NGC 5793, a spiral galaxy 150 ...