Crew in Node 2

S131-E-010307 (15 April 2010) --- NASA astronauts Clayton Anderson (bottom), Rick Mastracchio and Dorothy Metcalf-Lindenburger (background); along with Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki, all STS-131 mission specialists, work in the Harmony node of the International Space Station while space shuttle Discovery remains docked with the station.