Starship Asterisk*

Saturn's Colorful Aurora
While the curtain-like auroras we see at Earth are green at the bottom and red at the top, NASA's Cassini spacecraft has shown us similar curtain-like auroras at Saturn that are red at the bottom and purple at the top to the human eye.

Read more, and see images and movies, at http://www.ciclops.org/view_event/198/S ... urora?js=1

(Additionally, the Press release can be found here.)