It turns out that one of the colors we see in the world every single day is actually just a pigment of our imagination — er, sorry, figment of our imagination. Scientists say it's a sort of collective ...

Described as a kind of blue-green, the new color—named “olo”—can only be seen using lasers to manipulate certain ...

Concentrating light in a volume as small as the wavelength itself is a challenge that is crucial for numerous applications.

New analysis casts doubt on potential biosignatures detected in the atmosphere of exoplanet K2-18b that could indicate the ...