Date: 16 February 2005 Copyright: NASA, ESA and J. Clarke Show in archive: true
The NASA/ESA Hubble Space Telescope's Imaging Spectrograph took a series of snapshots of Saturn's aurora dancing in the sky. The ultraviolet images were taken on 8 January 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.