This artist’s conception illustrates the decline in our universe’s “birth-rate” over time. When the universe was young, massive galaxies were…
An image from NASA’s Mars Global Surveyor shows a crater in southern winter with frost deposits on the northern wall.
What’s happening to the galaxies of cluster Abell 2667? On the upper left, a galaxy appears to be breaking up…
Expedition 16 flight engineer Garrett Reisman participated in the STS-123 mission’s first scheduled spacewalk as construction and maintenance continue on…
This self-portrait of NASA’s Mars Exploration Rover Opportunity comes courtesy of the Sun and the rover’s front hazard-avoidance camera. The…
THEMIS’ mission is to help improve the understanding of severe space weather effects on Earth. THEMIS (Time History of Events…
The Sand Hills seen in this simulated natural-color image from NASA’s Terra spacecraft cover about a quarter of the state…
The Turpan Depression, nestled at the foot of China’s Bogda Mountains, is a strange mix of salt lakes and sand…
NASA’s Deep Impact spacecraft launches from the Cape Canaveral Air Force Station at 1:47:08 p.m. EST on Jan. 12, 2005.…
This image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra spacecraft shows North and South…
