A major power shortage at the International Space Station has delayed this week's SpaceX supply run. But an old power-switching unit malfunctioned at the space station Monday and knocked two power channels offline. NASA wants to replace the failed unit to restore full power, before sending up the SpaceX Dragon cargo capsule. Solar wings collect and generate electricity for the entire space station. Six weeks after a successful test flight without a crew to the space station, the crew Dragon was engulfed in flames during a ground test.

Source: ABC News April 30, 2019 15:41 UTC