2011

• 7/20/2011 STScI-2011-23 1. 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 2. 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)
• 4/28/2011 STScI-2011-13 3. 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)

2010

• 10/13/2010 STScI-2010-34 4. Hubble Finds that a Bizarre X-Shaped Intruder Is Linked to an Unseen Asteroid Collision Last January astronomers thought they had witnessed a fresh collision between two asteroids... (More)
• 10/8/2010 STScI-2010-33 5. NASA Mission to Asteroid Gets Help from Hubble Space Telescope NASA's Hubble Space Telescope has captured images of the large asteroid Vesta that will help scientists refine plans for the Dawn spacecraft's rendezvous... (More)
• 10/5/2010 STScI-2010-35 6. Hubble Probes Comet 103P/Hartley 2 in Preparation for DIXI/EPOXI Flyby Hubble Space Telescope observations of comet 103P/Hartley 2, taken on September 25, are helping in the planning for a November... (More)
• 9/13/2010 STScI-2010-32 7. Hubble Harvests Distant Solar System Objects This is an artist's concept of a craggy piece of solar system debris that belongs to a class of bodies called trans-Neptunian objects (TNOs). (More)
• 6/16/2010 STScI-2010-20 8. Mysterious Flash on Jupiter Left No Debris Cloud Detailed observations made by the Wide Field Camera 3 on NASA's Hubble Space Telescope have found an answer to the flash of light seen June 3 on Jupiter. (More)
• 6/3/2010 STScI-2010-16 9. Hubble Images Suggest Rogue Asteroid Smacked Jupiter Without warning, a mystery object struck Jupiter on July 19, 2009, leaving a dark bruise the size of the Pacific Ocean. The spot first caught the eye of an amateur astronomer... (More)
• 2/15/2010 STScI-2010-09 10. Hubble Captures Saturn's Double Light Show In January and March 2009, astronomers using NASA's Hubble Space Telescope took advantage of a rare opportunity to record Saturn when its rings were edge-on, resulting... (More)
• 2/4/2010 STScI-2010-06 11. New Hubble Maps of Pluto Show Surface Changes Since its discovery in 1930, Pluto has been a speck of light in the largest ground-based telescopes. But NASA's Hubble Space Telescope... (More)
• 2/2/2010 STScI-2010-07 12. Suspected Asteroid Collision Leaves Odd X-Pattern of Trailing Debris Something awfully curious is happening 100 million miles from Earth in the asteroid belt. There's a newly discovered object that superficially... (More)

2009

• 12/16/2009 STScI-2009-33 13. Hubble Finds Smallest Kuiper Belt Object Ever Seen NASA's Hubble Space Telescope has discovered the smallest object ever seen in visible light in the Kuiper Belt, a vast ring of icy debris that is encircling... (More)
• 10/9/2009 STScI-2009-26 14. Hubble Observes LCROSS Impact Event NASA's Hubble Space Telescope has made a series of observations immediately preceding and following the Lunar Crater Observation and Sensing Satellite (LCROSS) Centaur... (More)
• 9/9/2009 STScI-2009-25 15. Hubble Opens New Eyes on the Universe NASA's Hubble Space Telescope is back in business, ready to uncover new worlds, peer ever deeper into space, and even map the invisible backbone of the universe. (More)
• 7/24/2009 STScI-2009-23 16. Hubble Captures Rare Jupiter Collision NASA scientists have interrupted the checkout and calibration of the Hubble Space Telescope to aim the recently refurbished observatory at a new expanding spot on the giant planet Jupiter. (More)
• 3/17/2009 STScI-2009-12 17. Quadruple Saturn Moon Transit Snapped by Hubble Saturn's comparatively paper-thin rings are tilted edge on to Earth every 15 years. Because the orbits of Saturn's major satellites are in the ring plane, too, this alignment... (More)

2008

• 12/18/2008 STScI-2008-42 18. Hubble Catches Jupiter's Largest Moon Going to the 'Dark Side' NASA's Hubble Space Telescope has caught Jupiter's moon Ganymede playing a game of "peek-a-boo." In this crisp Hubble image, Ganymede... (More)
• 7/17/2008 STScI-2008-27 19. Three Red Spots Mix it Up on Jupiter This sequence of Hubble Space Telescope images offers an unprecedented view of a planetary game of Pac-Man among three red spots clustered together in Jupiter's atmosphere. (More)
• 5/22/2008 STScI-2008-23 20. New Red Spot Appears on Jupiter In what's beginning to look like a case of planetary measles, a third red spot has appeared alongside its cousins — the Great Red Spot and Red Spot Jr. — in the turbulent... (More)