These images show Jupiter's moon Io obtained at different infrared wavelengths with the W. M. Keck Observatory's 10-meter Keck II telescope on Aug. 15, 2013 (a-c), and the Gemini North telescope on Aug. 29, 2013 (d).
As seen by NASA's Cassini spacecraft, the surface of Dione is covered in craters, reminding us of the impacts that have shaped all of the worlds of our solar system; the surface also bears linear features that suggest geological activity in the past.
Although the crack-like features seen here on Dione's surface appear wispy and faded, they are in reality a series of geologically fresh fractures as seen in this images captured by NASA's Cassini spacecraft.
This image, taken by NASA's Cassini spacecraft, shows Dione's twin craters Romulus and Remus (just above-right of center), like their semi-divine namesakes, standing together. Also seen is Dido, the larger crater featuring a central peak.
The famed wispy terrain on Saturn's moon Dione is front and center in this recent image captured by NASA's Cassini spacecraft. The 'wisps' are fresh fractures on the trailing hemisphere of the moon's icy surface.
This new view of the historical supernova remnant Cassiopeia A, located 11,000 light-years away, was taken by NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR. While the star is long dead, its remains are still bursting with action.
NASA's Cassini spacecraft looks at an example of a ray crater on the leading hemisphere of Saturn's moon Dione. The ray crater is in the upper-left of the image and ejecta rays show up as brighter material emanating from the crater.
The northern and southern hemispheres of Dione are seen in these polar stereographic maps, mosaicked from images from NASA's Cassini mission. Each map is centered on one of the poles and surface coverage extends to the equator.
This global map of Saturn's moon Dione was created using images taken during flybys by NASA's Cassini spacecraft. This global map of Saturn's moon Dione was created using images taken during flybys by NASA's Cassini spacecraft.
NASA's Cassini spacecraft examines the anti-Saturnian side of Dione and shows the cratered surface east of the moon's distinctive wispy terrain which consists of bright cliffs on the moon's trailing hemisphere.
The latest version of a complete set of cartographic map sheets from a high-resolution Dione atlas was released today by the Cassini Imaging Team. Full photomosaic maps are available at the Photojournal.
Saturn's moon Dione coasts along in its orbit appearing in front of its parent planet in this view from NASA's Cassini spacecraft. The wispy terrain on the trailing hemisphere of Dione can be seen on the left of the moon here.
Saturn's fourth largest moon, Dione, appears like a solitary ornament suspended above the rings in view from NASA's Cassini spacecraft. The rings are closer to Cassini in this view, with Dione more distant.