Xiao Zhao crater is small in comparison with many other craters on Mercury. However, Xiao Zhao's long bright rays make it a readily visible feature. The fresh, bright rays, which were created by mater
MESSENGER image
High-resolution image from MESSENGER at a low sun angle
Oblique view at a high sun angle. The dark spot is clear below and to the right of the central peak.
The National Aeronautics and Space Administration is an independent agency of the U.S. federal government responsible for the United States' civil space program and for research in aeronautics and spa
Mary W. Jackson NASA Headquarters building in Washington, D.C.
A US Air Force Bell X-1 test flight
Launch of the Army Ballistic Missile Agency's Explorer 1, America's first satellite
Launch of Friendship 7, NASA's first crewed orbital flight, February 20, 1962