John M. Grunsfeld
| John Mace Grunsfeld | |
|---|---|
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| NASA Astronaut | |
| Nationality | American |
| Status | NASA Management Astronaut |
| Born |
October 10, 1958 Chicago, Illinois |
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Other occupation
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Physicist |
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Massachusetts Institute of Technology (BS) University of Chicago (MS, PhD) |
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Time in space
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58 days, 15 hours, 3 minutes |
| Selection | 1992 NASA Group |
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Total EVAs
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8 |
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Total EVA time
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58 hours, 30 minutes |
| Missions | STS-67, STS-81, STS-103, STS-109, STS-125 |
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Mission insignia
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John Mace Grunsfeld (born October 10, 1958) is an American physicist and a former NASA astronaut. He is a veteran of five Space Shuttle flights and has served as NASA Chief Scientist. His academic background includes research in high energy astrophysics, cosmic ray physics and the emerging field of exoplanet studies with specific interest in future astronomical instrumentation. After retiring from NASA in 2009, he served as the Deputy Director of the Space Telescope Science Institute in Baltimore, Maryland. In January 2012, he returned to NASA and served as associate administrator of NASA's Science Mission Directorate (SMD). Grunsfeld announced his retirement from NASA in April 2016.
John Grunsfeld was born in Chicago, Illinois to Ernest Alton 'Tony' Grunsfeld III, a distinguished Chicago architect, and Sally Mace Grunsfeld; grandson of architect Ernest Grunsfeld Jr., architect of the Adler Planetarium. He is married to the former Carol E. Schiff, with whom he has two children. John enjoys mountaineering, flying, sailing, bicycling, and music. His father, Ernest Grunsfeld III, died in 2011 at the age of 81.
Grunsfeld graduated from Highland Park High School in Highland Park, Illinois in 1976. He attended the Massachusetts Institute of Technology, earning a Bachelor of Science in physics in 1980. He then attended the University of Chicago, earning a Master of Science in physics in 1984 and a Doctor of Philosophy in physics in 1988.
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