The Cassini spacecraft examines the desolate, cratered crescent of Rhea, a surface so heavily bombarded over the eons that new craters are virtually guaranteed to form on top of older ones. The large Tirawa impact basin is visible here.
This view looks toward the leading hemisphere on Rhea (1,528 kilometers, or 949 miles across). North is up.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 26, 2007 at a distance of approximately 1.7 million kilometers (1 million miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 106 degrees. Image scale is 10 kilometers (6 miles) per pixel.
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.