The blue and gold solar arrays that give the International Space Station
its distinctive wingspan are also its main source of power. They
capture and convert sunlight into energy, which is stored in batteries
that keep the Station running.
Later this year, these batteries will be upgraded by Dextre, thereby saving the crew from conducting several spacewalks and freeing up their time for more important tasks.
Last weekend, Dextre conducted a dry run for this important work by practicing on a failed electrical component (known as the Main Bus Switching Unit).
Hi there! What kind of work have you been doing up there? What kind of preliminary requirements did you have to become an astronaut? Thanks!