Space Shuttle Endeavour astronaut Donald Pettit installs the Water Recovery System (WRS) rack in the Destiny laboratory of the International Space Station while Space Shuttle Endeavour is docked with the station in this NASA file photo taken Nov. 18, 2008.
Space Shuttle Endeavour Commander Christopher Ferguson holds up a bag of water from the International Space Station's new water recovery system labeled "tomorrow's coffee" during a news conference from the station in this view from NASA TV Nov. 25, 2008. Joining Ferguson for the news conference are (L-R) Stephen Bowen, Heidemarie M. Stefanyshyn-Piper, Ferguson, Donald R. Pettit and Pilot Eric Boe.