The human body has long been studied through the lens of chemistry and electrical signaling, but an emerging field of research is adding a fascinating new dimension: light. Scientists have discovered ...

“You’re glowing” is a well-known complimentary phrase meant to convey a perceived level of health, happiness, or other biological condition—pregnancies often inspire the platitude, for example. But in ...

Life, for the most part, is bathed in light. The sun immerses the planet in energy that supports the vast majority of ecosystems that call Earth home. In a new study published in the journal iScience, ...

Can living beings, plants, animals, and even humans emit light, silently and invisibly, as a part of their biological processes? A recent study published in The Journal of Physical Chemistry Letters, ...

This year, scientists observed an eerie glow emanating from mice that disappears after death, reminiscent of paranormal ideas of a bodily aura. The discovery led to a flurry of interest in the ...

In recent years, a growing body of evidence shows that photons play an important role in the basic functioning of cells. Most of this evidence comes from turning the lights off and counting the number ...

Many science fiction and fantasy stories are enveloped in a warm glow, and it’s not just because of nostalgia. Some characters literally glow — from ET’s fingertip to the demon markings in this year’s ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Homo Sapiens became the dominant mammalian species on Earth largely because having a powerful, flexible, ...