NASA’s Cassini spacecraft has captured clouds of methane moving across the surface of Saturn’s largest moon, Titan.
In the time-lapse video, you can see clouds coming in and out of the movie sequence that was composed of photos taken every 20 minutes for 11 hours.
Several sets of clouds develop, move over the surface and fade during the course of the video. Most prominent are long cloud streaks that are measured to move at a speed of about 14 to 22 miles per hour (7 to 10 meters per second).
There are also some small clouds farther north on the moon. These clouds include a bright cloud between Neagh Lacus and Punga Mare, which fade over the course of the movie. This small grouping of clouds is moving at a speed of about 0.7 to 1.4 miles per hour (1 to 2 meters per second).
According to NASA, these kind of time-lapse images help scientists study the dynamic of the clouds as they develop, move over the surface and fade.