Solar energy is a key element in keeping the International Space Station functional as it provides a working laboratory for astronauts in the unique microgravity environment. Astronauts rely on this renewable energy source to power the electronics needed for research and survival. In this episode, Expedition 55/56 Flight Engineer Ricky Arnold explains the process of generating power from the solar arrays on the space station to produce electricity for astronauts as they orbit approximately 250 miles above the earth’s surface.