
MESSENGER image of comet 2P/Encke during its closest approach to Mercury. At that time, Encke was approximately 2.3 million miles…

While the moon Epimetheus passes by, beyond the edge of Saturn’s main rings, the tiny moon Daphnis carries on its…

Russian cosmonaut Sergey Ryazanskiy, Expedition 38 flight engineer, floats freely while working in the Russian segment of the International Space…

Mikhail Tyurin, Expedition 38 flight engineer, practices manual docking techniques with the TORU, or telerobotically operated rendezvous system, in the…

Oleg Kotov, Expedition 38 commander, practices manual docking techniques with the TORU, or telerobotically operated rendezvous system, in the Zvezda…

This view in the International Space Station, photographed by an Expedition 38 crew member, shows how it looks inside the…

Michael Hopkins, Expedition 38 flight engineer, conducts a session with the Capillary Flow Experiment (CFE-2) in the Harmony node of…

Russian cosmonaut Oleg Kotov, Expedition 38 commander, uses a digital camera photospectral system to perform a session for the Albedo…

Rick Mastracchio, Expedition 38 flight engineer, prepares to replace a dewar tray in the Minus Eighty Laboratory Freezer for ISS…

MESSENGER image of comet C/2012 S1 (ISON) during its closest approach to Mercury.