An interior view from the International Space Station's ISS) Cupola module.

An interior view from the International Space Station’s (ISS) Cupola module. The large bay windows allowing the Expedition 42 crew to see outside. The Cupola houses one of the station’s two robotic work stations used by astronauts to manipulate the large robotic arm seen through the right window. The robotic arm, or Canadarm2, was used throughout the construction of the ISS and is still used to grapple visiting cargo vehicles and assist astronauts during spacewalks. The Cupola is attached to the nadir side of the space station and also gives a full panoramic view of the Earth.