Moons Near and Far…and More to Come!

246-mile-wide Mimas (foreground) and 70-mile-wide Epimetheus bracket a section of Saturn’s rings in this color-calibrated image from the Cassini spacecraft, taken in October 2009. Happily, we can expect to see beautiful images like this for another  7 years…NASA has extended the Cassini mission until at least 2017! During that time Cassini will transition into its…

Prometheus Passing

Prometheus, shepherd moon of Saturn’s F ring, is featured in this dramatic image from Cassini taken as it passed by at a distance of 23,000 miles (37,014 km) on January 27, 2010. This is the closest Cassini has come to Prometheus. The image above has been extensively cleaned up in regard to CCD pixel noise…

A Visit to Prometheus

This raw image, taken by the Cassini spacecraft on December 26, 2009 (on a certain space blogger’s birthday, by the way) shows an amazing view of Prometheus, one of Saturn’s many shepherd moons. This is the closest yet that Cassini has come to the 96-mile-long oblong moon. Details of its cratered surface are visible, as…

Senkyo Very Much

This is a close-up image of Senkyo, a large region on Titan made up of dark dune fields. Regions like this are called “low albedo” , or low reflectivity, areas and they wrap around the moon’s equatorial region. The dunes may be made up of material that falls from Titan’s thick smoglike atmosphere. When weather…

In the Stream of Stars

Titan floats in front of a streaked backdrop of stars in this photo from Cassini, taken on November 30. The Cassini orbiter was nearly a million and a half miles away from Titan when it took this image. Typically images aren’t exposed to capture both moons and stars…when they are, the results can be fascinating….