7/5/2011STScI-2011-2231.NASA's Hubble Makes One Millionth Science Observation
NASA's Hubble Space Telescope crossed another milestone in its 21-year space odyssey of exploration and discovery. On Monday, July 4, the Earth-orbiting observatory... (More)
6/22/2011STScI-2011-1732.Pandora's Cluster – Clash of the Titans
A team of scientists studying the galaxy cluster Abell 2744, nicknamed Pandora's Cluster, have pieced together the cluster's complex and violent history using telescopes... (More)
6/9/2011STScI-2011-2134.New Supernova Remnant Lights Up
Astronomers using NASA's Hubble Space Telescope are witnessing the unprecedented transition of a supernova to a supernova remnant, where light from an exploding star in a neighboring... (More)
5/23/2011STScI-2011-1536.Hubble Views the Star that Changed the Universe
Though the universe is filled with billions upon billions of stars, NASA's Hubble Space Telescope has been trained on a single variable star that in 1923 altered... (More)
5/12/2011STScI-2011-1437.Galaxy NGC 4214: A Star-Formation Laboratory
The dwarf galaxy NGC 4214 is ablaze with young stars and gas clouds. Located around 10 million light-years away in the constellation of Canes Venatici (The Hunting Dogs), the galaxy's... (More)
4/28/2011STScI-2011-1338.NASA's SWIFT and Hubble Probe Asteroid Collision Debris
Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite... (More)
4/12/2011STScI-2011-1240.NASA Telescopes Help Discover Surprisingly Young Galaxy
Astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, a mere 200 million years after the Big Bang. (More)