STS-116 crewmembers Oefelin and Curbeam, Jr., work with lithium hydroxide in the MDDK on Space Shuttle Discovery

S116-E-05293 (10 Dec. 2006) --- Astronauts William A. (Bill) Oefelein (bottom) and Robert L. Curbeam, Jr., STS-116 pilot and mission specialist, respectively, work with the lithium hydroxide (LiOH) canisters beneath Space Shuttle Discovery's middeck.