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NASA astronaut John Grunsfeld has walked in space eight times and logged more than 800 hours floating in that deep, dark void over the course of five space flights, including three to service the Hubble Space Telescope. Now, he is about to explore a new frontier: The Johns Hopkins University.

On July 1, the man nicknamed "the Hubble Repairman" became a research professor in the Henry A. Rowland Department of Physics and Astronomy at the Krieger School of Arts and Sciences. While at Johns Hopkins, Grunsfeld, who is deputy director at the Space Telescope Science Institute, will continue his research in astrophysics and the development of new technology and systems for space astronomy.

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      For more information on NASA Astrobiology, visit:
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      Last Updated Mar 31, 2025 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center
      Contact Media Claire Andreoli
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      claire.andreoli@nasa.gov
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      Space Telescope Science Institute, Baltimore, Maryland
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      Space Telescope Science Institute, Baltimore, Maryland

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      News Media Contact
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      Jet Propulsion Laboratory, Pasadena, Calif.
      626-314-4928
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