The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels.

Light up any child's bedroom with surprising quality and extra features at a reasonable price with the Yachance Night Light Star Projector.

After examining 13 million hours of light exposure data, researchers found that experiencing bright light during the dark hours can significantly increase the risk of heart failure and heart attack.

Artificial light at night, or ALAN, is one of the most pervasive byproducts of coastal urbanization. Streetlights, skyscrapers, and waterfront developments flood the night sky wit ...