Russia tried to opposite of it in the 90's: orbited a mirror to warm Siberia: https://www.nytimes.com/1993/01/12/science/russians-to-test-space-mirror-as-giant-

Russia tried to opposite of it in the 90's: orbited a mirror to warm Siberia: https://www.nytimes.com/1993/01/12/science/russians-to-test-space-mirror-as-giant-night-light-for-earth.html https://www.nytimes.com/1993/01/12/science/russians-to-test-...