Although Dione (near) and Enceladus (far) are composed of nearly the same materials, Enceladus has a considerably higher reflectivity than Dione. As a result, it appears brighter against the dark night sky.
On the hunt for alien worlds that might support life, NASA's unmanned Cassini spacecraft has survived its closest-ever dive through the icy spray coming from Saturn's moon Enceladus.
Saturn's 502km-diameter icy moon Enceladus has fascinated scientists since it was first seen up close by NASA's Voyager probes in the 1980s. The moon is venting plumes of ice particles into space including traces of methane, ...
An unmanned NASA spacecraft is set Wednesday to make its deepest dive ever into the icy spray emanating from the underwater ocean on Saturn's moon, Enceladus.