Saturn’s moon Tethys, seen this week by the robotic spacecraft Cassini. Above, Tethys captured from 232,892 kilometers away through a wide-angle camera while the moon was in eclipse. The lines are stars blurred by the spacecraft’s motion as it tracked the moon during a long exposure. Any dots or lines pointing in different directions are not stars, but cosmic rays hitting the camera’s receptor.

Below, Tethys as seen from farther away than the above image, but through the narrow-angle camera and in full sunlight.

Sent by: Cassini | From: Saturn | Sent: Dec, 2008 | Credit: NASA/JPL/SSI | Image source