NASA Astronaut Reid Wiseman explains what it was like to live on the International Space Station for 6 months to visitors at the Maryland Science Center in his hometown Baltimore, Md. on Wednesday, February 11, 2015. Wiseman served on Expeditions 40 and 41 with Maxim Suraev of the Russian Federal Space Agency (Roscosmos) and Alexander Gerst of ESA (European Space Agency), and returned home in November 2014. (NASA photo by Aubrey Gemignani)