Expedition 25 Commander Doug "Wheels" Wheelock was joined by Expedition 23/24 Flight Engineer Tracy Caldwell-Dyson for a special post-flight presentation to employees at NASA Headquarters on Mar. 16. Each spent more than five months aboard the International Space Station.
Questions about Wheels, Tracy Highlight Missions on ISS
Want more info about Wheels, Tracy Highlight Missions on ISS?
Get free advice from education experts and Noodle community members.