NASA - National Aeronautics and Space Administration

S131-E-008530 (10 April 2010) --- NASA astronaut Alan Poindexter, STS-131 commander, exercises using the advanced Resistive Exercise Device (aRED) in the Tranquility node of the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008532 (10 April 2010) --- NASA astronaut Alan Poindexter, STS-131 commander, exercises using the advanced Resistive Exercise Device (aRED) in the Tranquility node of the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008538 (10 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, works in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008556 (10 April 2010) --- Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki, STS-131 mission specialist, floats freely in the Leonardo Multi-Purpose Logistics Module (MPLM) linked to the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008558 (10 April 2010) --- NASA astronaut Dorothy Metcalf-Lindenburger, STS-131 mission specialist, holds stowage containers with her legs while floating freely in the Leonardo Multi-Purpose Logistics Module (MPLM) linked to the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008560 (10 April 2010) --- NASA astronauts James P. Dutton Jr. (left), STS-131 pilot; Stephanie Wilson and Clayton Anderson, both mission specialists, pose for a photo in the Leonardo Multi-Purpose Logistics Module (MPLM) linked to the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008561 (10 April 2010) --- Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki, STS-131 mission specialist, works in the Leonardo Multi-Purpose Logistics Module (MPLM) linked to the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008591 (10 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, works in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008595 (10 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, works in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.

S131-E-008597 (10 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, poses for a photo with the torso portion of his Extravehicular Mobility Unit (EMU) spacesuit in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.