As NASA's MESSENGER spacecraft drew closer to Mercury for its historic first flyby, the spacecraft acquired this image showing a…
This artist's impression shows how the Arches star cluster appears from deep inside the hub of our Milky Way Galaxy.…
The launch of Space Shuttle Endeavour lit up the sky at sunset as it lifted off on time at 6:36…
The STS-118 crew recently took a break from traing to pose for their official portrait. Pictured from the left are…
Ripples on the wind create intricate wave patterns in a thick plume of dust over Egypt (right) and Libya (left),…
Clouds and sunlight over the Indian Ocean, as seen from Discovery during the STS-96 mission in 1999.
From a ridgeline vantage point overlooking slopes, valleys and plains, NASA's Mars Exploration Rover Spirit has returned its latest color…
Shown in this 1972 image is Lexington, Massachusetts, high school student Judith Miles, who discusses her proposed Skylab experiment with…
Although the Huygens probe has now pierced the murky skies of Titan and landed on its surface, much of the…
President Gerald R. Ford watches Apollo Soyuz Test Project crewmen Thomas P. Stafford, Donald K. Slayton and Valeriy N. Kubasov…
