They want to turn off the night and sell sunlight. The ambitious plan of Americans raises concerns among scientists.

Reflect Orbital aims to illuminate Earth using thousands of mirrors in space, but scientists warn of ecological impacts. The startup's recent test in California showcased its potential, yet concerns about disrupting natural cycles and astronomical observations persist. The company plans to launch up to 50,000 satellites, but economic and physical challenges remain. Critics emphasize the need for discussions on the implications of altering nighttime conditions. The first satellite is set for 2027, leaving the project in a conceptual phase while raising questions about ownership of the night sky.