Learn more› By Teresa Carr Using a wand or scary-looking mask to bathe your face in red light is all the rage for helping to make skin look and feel better. But another use for red light therapy ...

Here’s how it works. The speed of light traveling through a vacuum is exactly 299,792,458 meters (983,571,056 feet) per second. That's about 186,282 miles per second — a universal constant ...

Barring a freak power outage, the light emanating from towns and cities due to unnatural light sources is so bright that it washes out the stars. Today one-third of all humans, including 80% of ...

Full-face LED masks like this one can cost up to several thousand U.S. dollars. The application of red light can stimulate collagen production and blood circulation, and even reduce signs of aging.

Learn more › Light bulb security cameras offer a handy security solution for people who want coverage, but don’t want to partake in a complicate installation process. Most of these models ...

We’ve all read the reports: Blue light can play a role in sleep issues. It’s also been mentioned as a factor in skin damage, too. Fortunately, not only can you enable a blue-light filter on ...

Blue light -- the kind from your smartphone, tablet, TV, and even energy-efficient light bulbs -- is not necessarily damaging to the eyes but can trigger eyestrain and lead to a range of health ...

Previously, at Protocol, The Wall Street Journal, and Wired. Now, Light is trying to do something a bit different. The company is launching the Light Phone 3, which comes with a new display ...

A mysterious spiraling blue light illuminated the night skies over Europe on Monday. The cosmic whirlpool was captured in stunning video and appears to have been created by the SpaceX Falcon 9 ...