Several days ago, NASA’s Astronomy Picture of the Day was the impressive “Io: Moon Over Jupiter.” At left is a portion of photo, which was taken by the Cassini spacecraft. Jupiter’s moon Io [EYE-oh] was discovered by Galileo in 1610. He named it for Io the mythological character — a nymph who was seduced by Zeus, then turned into a cow. The name Io doesn’t have a known meaning, and it’s rare in the U.
Wonderful colors in a volcanic crater named Tupan Patera on Jupiter's moon Io, as seen in this image from NASA's Galileo spacecraft, show varied results of lava interacting with sulfur-rich materials. The colorfulness of the image i... Read Post
The puzzling, fascinating surface of Jupiter's icy moon Europa looms large in this newly-reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s. This is the color view of Europa from Galileo th... Read Post
These color maps of Jupiter were constructed from images taken by the narrow-angle camera onboard NASA's Cassini spacecraft on Dec. 11 and 12, 2000, as the spacecraft neared Jupiter during its flyby of the giant planet. Cassini was ... Read Post