News Release Archive:

News Release 516 of 1051

February 16, 2005 02:00 PM (EST)

News Release Number: STScI-2005-06

Saturn's Auroras Defy Scientists' Expectations


Video: Saturn's Aurora: Changes During Jan 8, 2004 (Unannotated)

Running Time: 2 seconds

NASA's Hubble Space Telescope Imaging Spectrograph took a series of snapshots of Saturn's aurora dancing in the sky. The ultraviolet images were taken on Jan. 8, 2004. This dissolve sequence shows the aurora appearing as a ring of light circling the planet's polar ring. Collisions with atoms and molecules make the gases in the planet's atmosphere glow in visible, ultraviolet, and infrared light.

Credit: NASA, ESA, J. Clarke (Boston Univ.) and G. Bacon (STScI)

Selected still images from this video (click to enlarge):

Release Videos