The invention of tiny devices capable of precisely controlling the direction and behavior of light is essential to the ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all without mechanical motion. The design overcomes a long-standing efficiency-versus ...

Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and ...

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many ...

Ultraviolet and near-infrared light are widely used in modern technologies but are invisible to the human eye. Researchers ...

You can point to red, green, and blue on a rainbow, but not purple. That’s because it doesn’t actually exist in the spectrum ...

In my opinion, invisibility is no longer a science fiction concept.” A B-2 stealth bomber takes off from Nellis Air Force ...

The Old Farmer's Almanac has said that the year will offer several special moments in the sky.

Auroras occur when solar wind collides with Earth’s magnetic field, creating dazzling lights. Learn why auroras appear in red ...

Caltech scientists have developed a way to guide light on silicon wafers with low signal loss approaching that of optical fiber at visible wavelengths. This accomplishment paves the way for a new ...

In one of the most baffling discoveries of the last decade, scientists have found a clue in a cave to how life might survive ...

International Space Station, where astronauts have lived and worked for 25 years, is visible to us on Earth. How to see it ...