ISS Assembly Mission 3A: Arriving aboard Space Shuttle Discovery, the STS-92 crew installed the Z1-Truss. Inside the Z1 are four Control Moment Gyroscopes (CMGs) that provide the International Space Station's attitude control. The CMGs were later activated on ISS Assembly Mission 5A. A third pressurized mating adapter was installed on the Unity Node, providing an additional Shuttle docking port. A Ku-band antenna provides television capability.
The International Space Station marked its 10th anniversary of continuous human occupation on Nov. 2, 2010. Since Expedition 1, which launched Oct. 31, 2000, and docked Nov. 2, the space station has been visited by 202 individuals. The space station, including its large solar arrays, spans the area of a U.S. football field, including the end zones, and weighs 861,804 pounds, not including visiting vehicles.
Simulación de espacio para cuatro instrumentos infrarrojos de JWST-La construcción de un telescopio espacial no es poca cosa. Las condiciones aquí en la Tierra son drásticamente diferentes de aquellos experimentados en órbita alrededor de nuestro planeta. ¿Cómo sabemos que cualquier telescopio construido en nuestros laboratorios controlados puede soportar las duras condiciones del espacio?
The Unity module inside the shuttle payload bay of Space Shuttle Endeavour. Endeavour is scheduled to fly on mission STS-88, the first Space Shuttle flight for the assembly of the International Space Station, on December 3, 1998. The primary payload on the mission is the Unity connecting module, which will be mated to the Russian-built Zarya Control Module already in orbit at that time. (Great Images in NASA)