light

Light helps explains the evolution of our skin color, why some of us have curly hair, and the size of our eyes. And light still shapes us today.

We have trillions of body clocks — a central one in the brain and others in each cell of our body. Here's how they work with light to control our health.

Using a groundbreaking new technique, researchers have unveiled the first detailed image of a photon — a single particle of light — ever taken.

Does light behave more like a particle, or like a wave? Today we know the surprising answer. Here's why it took so long to get there.

Every winter, when sunlight hits at the right angle, visitors to Virginia's First Landing State Park are treated to a mesmerizing rainbow light show courtesy of the park's bald cypress swamp.

Finding the universe's brightness is essential for confirming our theories of what makes up the universe. But to do so, scientists had to send a spacecraft far away from our sun.

New theoretical research finds that it's impossible to form a black hole with the energy of light particles alone, poking a hole in Einstein's theory of general relativity.

In the dark, vivid colors seem to fade to gray and they're hard to tell apart. Why is that?

Aurora-hunting photographers were surprised to spot a misshaped SpaceX spiral with ethereal horns over Europe during a recent geomagnetic storm.

Researchers have discovered a way to curve data-carrying terahertz signals around obstacles, paving the way for ultrafast 6G.