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| STS-90 Shuttle Mission Imagery | |
 high res (4.1 M) low res (202 K) | STS090-E-5077 (21 April 1998) --- Astronaut Dafydd (Dave) R. Williams, a mission specialist representing the Canadian Space Agency (CSA), is a test subject for the Sleep Studies experiment in the Neurolab aboard the Earth-orbiting Space Shuttle Columbia. The sleep cap monitors and measures electrical impulses from the brain, muscles, eyes, and heart. The photo was taken with an electronic still camera (ESC) at 04:19:00 GMT, April 21, 1998. |
Curator: Kim
Dismukes | Responsible NASA Official: John Ira Petty | Updated: 04/09/2002 |
