SPACE.com Image of the Day
A galaxy cluster merger is seen by the Chandra X-ray Observatory.
NASA's Phoenix Mars Lander uncovers an ice layer in this 3D image.
NASA's Spitzer Space Telescope takes two views of Comet Holmes.
A second-generation spaceflyer blasts off on a Russian Soyuz spacecraft.
A star-forming cloud is revealed in infrared, visible light and X-ray.
