Gloomy Titan
Gloomy Titan Titan as seen by Cassini on 28 September 2012. In winter darkness, a vortex has formed over the south pole. NASA / JPL-Caltech / SSI / Emily Lakdawalla

Original images: N1727550801_1, N1727550856_1, N1727550911_1.

"We're changing the world. Are you in?"
- CEO Bill Nye

Sign up for email updates