Extra vehicular activity - Astronaut Kathy Thornton on the end of orbiter Endeavour's remote manipulator system arm, hovers over equipment associated with servicing chores on the Hubble Space Telescope (HST).
Extra vehicular activity - Astronaut Kathy Thornton on the end of orbiter Endeavour's remote manipulator system arm, hovers over equipment associated with servicing chores on the Hubble Space Telescope (HST).