Gregory C. Johnson

Gregory C. Johnson

  • 7/30/1954
  • American - Retired
  • National Aeronautics and Space Administration
  • Twitter Wiki

Gregory Carl "Ray J" Johnson is a former American naval officer and aviator, test pilot, aerospace engineer, and NASA astronaut. He spent his military career in both, the United States Navy and the Navy Reserve. He was the Pilot on Space Shuttle mission STS-125, the final Hubble Space Telescope servicing mission.