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STS-61-M was a proposed NASA Space Shuttle program mission, planned for July 1986 but canceled following the Space Shuttle Challenger disaster (STS-51-L).

The payload manifest was to have been TDRS-D, INSAT-1C, and EOS-1 (Electrophoresis Operations in Space).[1] EOS-1 was a payload developed by McDonnell Douglas that would have demonstrated the production in space of ultra-pure erythropoietin through electrophoresis.[2] Robert Wood, a McDonnell Douglas engineer, was assigned as the payload specialist for EOS-1 with fellow engineer Charles D. Walker assigned as his backup.[3]

If flown, this would have been Sally Ride‘s third space mission. After the Challenger disaster, Ride was named to the Rogers Commission investigating the disaster and left NASA afterwards in 1987.[4]

Primary Crew

Position Astronaut
Commander Loren J. Shriver
Would have been second space mission
Pilot Bryan D. O’Connor
Would have been second space mission
Mission Specialist 1 Mark C. Lee
Would have been first space mission
Mission Specialist 2 Sally K. Ride
Would have been third space mission
Mission Specialist 3 William F. Fisher
Would have been second space mission
Payload Specialist Robert Wood
Would have been first space mission

Backup Crew

Position Astronaut
Payload Specialist Charles D. Walker
Would have been fourth space mission

See also

References

  1. ^ a b Furness, Tim (1986). Space Shuttle Log. Jane’s Information Group. p. 86. ISBN 978-0710603609. Retrieved June 1, 2025.
  2. ^ Harwood, William (October 22, 1986). “Science Today: Space drug grounded but going strong”. UPI. Retrieved June 1, 2025.
  3. ^ Walker, Charles D. (November 7, 2006). “Charles D. Walker Oral History”. NASA Johnson Space Center Oral History Project (Interview). Interviewed by Johnson, Sandra. Springfield, Virginia: NASA. Retrieved June 1, 2025.
  4. ^ Williams, Patti (2015). “Sally K. Ride Papers”. Smithsonian Institution. Retrieved June 1, 2025.