Portrait of John Grunsfeld
NASA
John Grunsfeld
John Grunsfeld is an American astronaut who was born on October 10, 1958,
in Illinois. Before he became an astronaut, Grunsfeld did research in
physics at the University of Chicago.
Grunsfeld became an astronaut in 1992. He has spent over 644 hours in
space on two spaceflights.
Grunsfeld made his first spaceflight aboard STS-67 in 1995. The crew
made observations of deep space objects. In 1997, Grunsfeld flew aboard
STS-81. The shuttle docked with Russia's Mir Space Station.
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