A California-based space technology company’s plan to test a satellite carrying a giant reflective mirror has prompted warnings from experts who fear the technology could worsen light pollution, disrupt ecosystems, and interfere with scientific research. Reflect Orbital recently received approval from the U.S. Federal Communications Commission (FCC) to launch and test its Eärendil-1 demonstration satellite, which will carry a giant space mirror designed to redirect sunlight back to Earth from low Earth orbit. (snip) The demonstration mission aims to test whether sunlight can be reflected onto specific locations on Earth. The reflected light would illuminate an area around three miles...