from the "leaving the scene" dept.

Ka-blam!

CNN is reporting (July 21/09) that a mysterious impact has left an Earth-sized mark on Jupiter.

"Jupiter is sporting a new scar after an unseen object hit the gaseous planet this week, NASA scientists say.

An amateur astronomer in Australia noticed the new mark -- seen through telescopes as a dark spot -- on the planet early Monday and tipped off scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, who then confirmed it was the result of a new impact, NASA said."

The rest of the story is here.