A fresh crater on Mars has revealed a hidden cache of frozen water in some of the latest photos from a powerful NASA spacecraft.Full story
See Saturn’s mysterious moon, Martian marvels and other cosmic highlights from December 2008.
It's easy to think of Mars as static, unchanging - a "geologically dead" planet, as is often mentioned. The first images taken at close approach to Martian surface came to us in 1965 from Mariner 4. Since then, many more images have revealed features that, except for becoming clearer and more detail
The Opportunity rover's mast shows up as a shadow in a picture taken by its navigation camera on the Martian surface on Jan. 10.
Chains of crater marks on Mars such as these could have been made by icebergs rolling across ancient Martian ocean floors, researchers suggest.
This mosaic of images from the Surface Stereo Imager camera on NASA's Phoenix Mars Lander shows a portion of the spacecraft's deck after deliveries of several Martian soil samples to scientific instruments.
This true-color image, captured on May 11, shows the tracks left behind on the Martian surface by NASA's Opportunity rover.