2005 (continued)

• 2/16/2005 STScI-2005-06 11. Saturn's Auroras Defy Scientists' Expectations The dancing light of the auroras on Saturn behaves in ways different from how scientists have thought possible for the last 25 years. New research by a team of astronomers... (More)

2004

• 5/26/2004 STScI-2004-18 12. Saturn Seen from Far and Near As Saturn grows closer through the eyes of the Cassini spacecraft, which is hurtling toward a rendezvous with the ringed world on June 30 (July 1, Universal Time), both Cassini... (More)

2003

• 9/9/2003 STScI-2003-23 13. The Slant on Saturn's Rings This is a series of images of Saturn, as seen at many different wavelengths, when the planet's rings were at their maximum tilt of 27 degrees toward Earth. Saturn experiences seasonal... (More)
• 5/15/2003 STScI-2003-17 14. Brighter Neptune Suggests a Planetary Change of Seasons Springtime is blooming on Neptune! This might sound like an oxymoron because Neptune is the farthest and coldest of the major planets. But observations... (More)

2001

• 10/11/2001 STScI-2001-31 15. Scientists Track "Perfect Storm" on Mars A pair of eagle-eyed NASA spacecraft — the Mars Global Surveyor (MGS) and Hubble Space Telescope — are giving amazed astronomers a ringside seat to the biggest... (More)

2000

• 12/14/2000 STScI-2000-38 16. Satellite Footprints Seen in Jupiter Aurora In this Hubble telescope picture, a curtain of glowing gas is wrapped around Jupiter's north pole like a lasso. This curtain of light, called an aurora, is produced when high-energy... (More)

1999

• 8/5/1999 STScI-1999-29 17. Hubble Views Ancient Storm in the Atmosphere of Jupiter When 17th-century astronomers first turned their telescopes to Jupiter, they noted a conspicuous reddish spot on the giant planet. (More)
• 5/19/1999 STScI-1999-22 18. Colossal Cyclone Swirls near Martian North Pole Astronomers using the Hubble telescope have discovered an enormous cyclonic storm system raging in the northern polar regions of the planet Mars. (More)
• 2/25/1999 STScI-1999-07 19. Martian Colors Provide Clues about Martian Water Hubble telescope images of Mars detail a rich geologic history and provide further evidence for water-bearing minerals on the planet's surface. (More)

1998

• 10/14/1998 STScI-1998-35 20. Hubble Finds Many Bright Clouds on Uranus A Hubble telescope infrared view of Uranus reveals that the planet is surrounded by its four major rings and by 10 of its 17 known satellites. ... (More)