STS-125 Crew Members replace LiOH Cannisters on the Shuttle Atlantis Middeck

S125-E-006611 (13 May 2009) --- Astronaut John Grunsfeld, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day three activities

S125-E-006611 (13 May 2009) --- Astronaut John Grunsfeld, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day three activities.