Image of the DayBright scars on a darker surface testify to a long history of impacts on Jupiter's moon Callisto in this image...This frame from the microscopic imager on the Mars Exploration Rover Opportunity shows spherules up to about 5 millimeters (one-fifth...Astronauts Jerry L. Ross (left) and James H. Newman, both mission specialists, work together on the final of three space...In this May 15, 2004 image, dark regions represent areas where Cassini is seeing into deeper levels in Saturn's atmosphere....Recent solar activity has produced some spectacular aurora in areas not usually lucky enough to see them, like this dazzling...
