Paul Williams provides an accessible introduction to optical frequency combs
2015 is the International Year of Light and Light-based Technologies (IYL 2015), as declared by the United Nations.
A short film exploring the vital role that light plays in regulating the sleep-wake cycle
An amateur astronomer struggles to find darkness amid the dazzling lights of New York City
Light-based technologies wow the crowds at Birmingham’s new central library
The New York photographers who are defying the digital trend