A source of photons is a very convenient tool for physicists
2015 is the International Year of Light and Light-based Technologies (IYL 2015), as declared by the United Nations.
Light-based technologies wow the crowds at Birmingham’s new central library
A short film exploring the vital role that light plays in regulating the sleep-wake cycle
How portable LED lights are helping students in a rural Indian community
An amateur astronomer struggles to find darkness amid the dazzling lights of New York City