Madonna goes to bed at 4am. The 63-year-old singer — who has six children — is a “night owl” and insisted she’s at her most ...

This story is from The Pulse, a weekly health and science podcast. Find it on Apple Podcasts, Spotify, or wherever you get your podcasts. In general, our circadian rhythms are governed by the ...

It is a cold night in early January. A quarter moon illuminates the woods and the stone road we walk on enough to see without a headlamp, but it’s dark enough still to appreciate the canopy of ...

If you liked this story, share it with other people. In Sri Lanka, volunteers and researchers survey owls at night along set routes to mark the International Owl Day that falls on Aug. 4. But what ...