Self-portrait of Curiosity rover taken by MAHLI on October 31, 2012.
GRAIL image of Earth's moon shows variations in the lunar gravity field.
Comet ISON captured by Hubble Space Telescope, April 30, 2013.
Animation shows history of Mars exploration.
True-color visualization shows Mars.
Mars Curiosity self-portrait updated May 10, 2013 to show drill holes.
Image of second rock target drilled by Curiosity, May 19, 2013.
Full-circle view from Mars Opportunity Rover, October 2011 and May 2012.
Conceptual illustration of the 2012 Venus transit.
Simulation of what the Apollo 8 crew saw as the Earth rose above the moon
Visualization shows three features on the Moon, observed by LRO.
Visualization shows the phases and libration of the moon, 2012.