The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels. Critics say it could be bad for people and wildlife.

Diet, exercise, sleep — all are fundamental to our health, but our relationship to light doesn't get mentioned as much. Now, a massive new study suggests light-driven disruption can take years off our ...

Night on planet Earth is getting brighter as artificial light illuminates more natural spaces. Scientists know a lot about how this messes with ecosystems on land, but new research shows it can ...

Excessive light pollution at night may increase the risk of Alzheimer’s disease – especially in younger people, warns a new study. Researchers found that exposure to outdoor light after dark could ...

Your daily light exposure impacts your health. A new study finds that too much light at night and not enough natural light during the day can be harmful. This story first aired on Morning Edition on ...