
A new experiment uses the soccer-ball-sized, free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites, or SPHERES, already…

Mike Hopkins works with a new experiment using the soccer-ball-sized, free-flying satellites known as SPHERES.

Jan. 23, 2014 -- At Cape Canaveral Air Force Station's Launch Complex 41, the United Launch Alliance Atlas V with…

A United Launch Alliance Atlas V rocket with NASA's Tracking and Data Relay Satellite (TDRS-L) spacecraft on board arrives at…

More than 100 asteroids were captured in this view from NASA's Wide-field Infrared Survey Explorer, or WISE, during its primary…

Sunrise for Atlas V, TDRS-L

Expedition 39/40 crew members pose for a portrait at their preflight press conference at NASA's Johnson Space Center.

NASA astronaut Steve Swanson poses for a portrait following an Expedition 39/40 preflight press conference.

Russian Cosmonaut Oleg Artemyev poses for a portrait following an Expedition 39/40 preflight press conference.

Russian Cosmonaut Alexander Skvortsov poses for a portrait following an Expedition 39/40 preflight press conference.