NASA Hubble:
David Leckrone at the Goddard Space Flight Center
NASA Hubble:
James Barcus at Goddard Space Flight Center
NASA Hubble:
Astronaut Grunsfeld at a Crew Familiarization Event
NASA Hubble:
Astronauts at a Crew Familiarization Event
NASA Hubble:
Astronauts Grunsfeld and Feustel Sign a Hat
NASA Hubble:
SM4 Crew Familiarization Event
NASA Hubble:
Science Instrument Command and Data Handling Unit
NASA Hubble:
Circuit Board Replacement in the ACS
NASA Hubble:
Gyro Replacement Training
NASA Hubble:
Fastener Capture Plate
NASA Hubble:
Astronaut Tool Crew Familiarization
NASA Hubble:
Astronaut Tool Crew Familiarization
NASA Hubble:
Grunsfeld Training for WFC3 Installation
NASA Hubble:
Astronaut Megan McArthur in Shuttle
NASA Hubble:
Astronaut McArthur Trains on Robotic Arm
NASA Hubble:
Astronaut Gregory Johnson in Shuttle Cockpit
NASA Hubble:
JSC Flight Controller During a Mission Simulation
NASA Hubble:
Astronaut Megan McArthur at the Neutral Buoyancy Lab
NASA Hubble:
The Pool at NASA's Neutral Buoyancy Laboratory
NASA Hubble:
The Neutral Buoyancy Lab at Johnson Space Center
NASA Hubble:
Astronaut Prepares to Train at Neutral Buoyancy Lab
NASA Hubble:
HST Project-Support Divers at the Neutral Buoyancy Lab
NASA Hubble:
EVA Manager and Engineers at Pool Training
NASA Hubble:
Neutral Buoyancy Lab Employees
NASA Hubble:
EVA Training at the Neutral Buoyancy Lab
NASA Hubble:
Astronaut Suits Up for Pool Training
NASA Hubble:
Astronaut Michael Good Suits Up for Pool Training
NASA Hubble:
Astronaut Good Prepares for Final Pool Training Exercise
NASA Hubble:
Astronaut Drew Feustel Prepares for EVA Training
NASA Hubble:
Astronaut Massimino Removes Practice Suit
