Story Musgrave

F. Story Musgrave was a physician and engineer who flew six Space Shuttle missions across two decades, more than any astronaut except a small handful of others, and remains the only person to have flown aboard all five Space Shuttle orbiters. He performed three of the five spacewalks during STS-61 in 1993, the mission that corrected the Hubble Space Telescope's flawed primary mirror, drawing on spacewalking experience that stretched back to the earliest Shuttle flights.