Chicago Astronomy Degree Recipients
Alumnus of the Day: John M. Grunsfeld, 1988
Alumnus: John M. Grunsfeld
Ph.D., University of Chicago, 1988

Veteran astronaut, astronomer, and astrophysicist, Chief Scientist, NASA


Grunsfeld is a veteran of four Space Shuttle flights. In 1999 and 2002 he took part in a total of five successful spacewalks to upgrade Hubble. As a Mission Specialist on STS-103, Grunsfeld helped install new gyroscopes and scientific instruments and upgraded Hubble's systems. During STS-109, he served as Payload Commander, in charge of the spacewalking activities and the Hubble payload. He and three other crewmates installed a new digital camera, cooling system for the infrared camera, new solar arrays, and power system.

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