Light pollution threatens coastal marine systems, study suggests

Artificial light at night has a profound effect land-based life—from birds to fireflies to humans. But a new study suggests we need to widen our view to include light pollution's effect on coastal marine ecosystems, impacting ...

Biological clocks: How does the body know that time goes by?

In April of this year, Spanish athlete Beatriz Flamini emerged into the light after a 500-day stay in a cave. Her descent underground is probably the longest undertaken by a long stretch. Flamini says she lost all sense of ...

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