Petite Pallene

NASA's Cassini spacecraft captured a picture of the tiny, 4-kilometer-wide (3-mile-wide) moon Pallene, in front of the planet Saturn. Saturn is more than 120,000 kilometers (75,000 miles) wide at its equator. This image, which has not been validated or calibrated, was taken on Oct. 16, 2010.

Image credit: NASA/JPL/SSI