The device transmits solar energy back down to Earth in electromagnetic waves
The US Naval Research Laboratory launched a laser power beaming device into space on Wednesday. Though the technology is still in its infancy, proponents say it could one day fuel extraterrestrial colonies, or alleviate energy shortages on earth.
The Space Wireless Energy Laser Link (SWELL) blasted off for the International Space Station aboard a SpaceX Cargo Dragon spacecraft on Wednesday,