Get larger image formats The Space Telescope Science Institute has appointed Dr. Massimo Stiavelli as the James Webb Space Telescope (JWST) Mission Head. Stiavelli will be responsible for the development and operations of the JWST Scienc...

Get larger image formats Comet ISON is potentially the "comet of the century" because around the time the comet makes its closest approach to the Sun, on November 28, it may briefly become brighter than the full Moon. Right now the...

Get larger image formats Unlike other celestial objects there is no question how the Horsehead Nebula got its name. This iconic silhouette of a horse's head and neck pokes up mysteriously from what look like whitecaps of interstellar...

Get larger image formats NASA and the Space Telescope Science Institute (STScI) have announced the selection of 17 new Hubble Fellows. The Hubble Fellowship Program now includes all research relevant to present and future missions in...

Get larger image formats A long time ago, in a galaxy far, far away, a star detonated with enough energy to briefly shine with an intrinsic brightness of one billion of our suns. The beacon of radiation arrived at Earth 10 billion years ...

Get larger image formats NASA's Chandra X-ray telescope has made the first detection of X-ray emission from young solar-type stars that lie outside our Milky Way galaxy. They live in a region known as the "Wing" of the Small Magellan...