Astronauts Chris Cassidy and Luca Parmitano work with the cargo in the newly attached Japanese "Kounotori" H2 Transfer Vehicle-4.
Astronaut Luca Parmitano prepares to open the hatch to the newly attached Japanese "Kounotori" H2 Transfer Vehicle-4.
Astronaut Luca Parmitano samples the air in the newly attached Japanese "Kounotori" H2 Transfer Vehicle-4.
A sunset over the Aleutian Islands, with noctilucent clouds, is featured in this image photographed by an Expedition 36 crew…
Astronaut Karen Nyberg conducts a session with a pair of bowling-ball-sized free-flying satellites known as SPHERES.
A close-up view of a bowling-ball-sized free-flying satellite known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites, or SPHERES.
NASA astronaut Rick Mastracchio, wearing his Extravehicular Mobility Unit (EMU) spacesuit.
Expedition 38 crew members take a break from training at NASA's Johnson Space Center to pose for a crew portrait.
On August 15, at the Naval Station Norfolk near NASA’s Langley Research Center in Virginia, NASA and the U.S. Navy…
Engineers work with the Integrated Science Instrument Module for the James Webb Space Telescope inside the thermal vacuum chamber at…