We’re all taught that water is clear, so why does the ocean look so strikingly blue when we’re staring out […] ...

Red-light devices are all over social feeds and make enormous promises. From the many, we find the few that are actually worth your commitment, time, and money.

The prototype LED-based hyperspectral imaging system demonstrates potential for real-time tissue assessment, improving ...

Astronomers from Bulgaria and Egypt have performed multi-wavelength observations of a well-known blazar designated S5 ...

Recent physics studies have found that light can sometimes flow in unexpected ways, behaving like a so-called "superfluid." ...

What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

Fireworks were first invented serendipitously by the Chinese in 200 B.C. but getting that perfect blue is a challenge ...

The annual celebration of our Independence Day will dazzle the skies but will come with more sizzling heat with air quality ...

The palm-sized, battery-powered Helight Sleep emits pure red light that slowly fades to dark, helping you doze off.

White LED bulbs are commonplace in households by now, mostly due to their low power usage and high reliability. Crank up the light output enough and you do however get high temperatures and corresp… ...

Shown a series of letters that looked black and white in visible light, people wearing the lenses detected multiple colors associated with near-infrared wavelengths. “Our research opens up the ...

Researchers have found that blue light exposure in the morning could help regulate sleep times and activity during the day. Experts weigh in on the findings.