2011 (continued)

• 7/20/2011 STScI-2011-23 21. NASA's Hubble Discovers Another Moon Around Pluto These two images, taken about a week apart by NASA's Hubble Space Telescope, show four moons orbiting the distant, icy dwarf planet Pluto. The green circle in both snapshots... (More)
• 7/12/2011 STScI-2011-19 22. Neptune Completes Its First Circuit Around The Sun Since Its Discovery These four images of Neptune were taken by NASA's Hubble Space Telescope during the planet's 16-hour rotation. The snapshots were taken at roughly... (More)
• 7/5/2011 STScI-2011-22 23. 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)
• 6/22/2011 STScI-2011-17 24. 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)
• 6/16/2011 STScI-2011-18 25. Firestorm of Star Birth in the Active Galaxy Centaurus A Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A. Hubble's panchromatic vision... (More)
• 6/9/2011 STScI-2011-21 26. 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)
• 5/25/2011 STScI-2011-16 27. NASA's Hubble Finds Rare Blue Straggler Stars in the Milky Way's Hub Peering deep into the star-filled, ancient hub of our Milky Way (left), NASA's Hubble Space Telescope has found a rare class of oddball... (More)
• 5/23/2011 STScI-2011-15 28. 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)
• 5/12/2011 STScI-2011-14 29. 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)
• 4/28/2011 STScI-2011-13 30. 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)