Astronauts Jim Voss and Jay Apt perform check-out procedures on a Hubble Space Telescope mock-up while working in the Marshall Space Flight Center's Neutral Buoyancy Simulator (NBS).
Astronauts Jim Voss and Jay Apt perform check-out procedures on a Hubble Space Telescope mock-up while working in the Marshall Space Flight Center's Neutral Buoyancy Simulator (NBS).