Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

The Northern Taurid meteor shower peaks from Tuesday, Nov. 11 to Wednesday, Nov. 12. Activity runs from late October through Wednesday, Dec. 10, but this window offers the best odds for the shower’s ...

In this video I see how fast we can get a radiometer to spin by shining the world's brightest flashlight on it. Then I talk about the real reason the Crookes radiometer spins when you shine light on ...

(CNN) — Turning off the lights at night has long been known to support restful sleep, but new research suggests it may have another significant benefit. Sleeping in total darkness may lower the risk ...