As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against visible light that causes photodamage, melasma and hyperpigmentation, according ...

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

Even though emeralds and rubies are very different colors, they both have the same secret ingredient in their atomic ...

Our love affair with technology can wreck our vision and sleep, thanks to blue light. “The problem is that, with technology, we are being overexposed to blue light,” said ophthalmologist Dr. Rafael ...

GIA’s laboratories use advanced instrumentation and research to deliver accurate grading, identification, and origin ...

Neon colors, also sometimes referred to as fluorescent colors, are the rock stars of the visible spectrum — bold, electric and impossible to ignore.

A much touted emerging treatment, red light therapy, lives up to the hype for a lot of health claims, but certainly not ...

Using 20 years of data from the Hubble Space Telescope astronomers have discovered that turbulent stars could be corrupting ...

The peak of the current solar cycle is ongoing, bringing spectacular views of the northern lights to several U.S. states.

A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics.