Looking for the good in life over the bad may seem to be a trait you’re born with. New research on optimism and aging shows it’s never too late to change.

A fogbow forms the same way a rainbow does, light bends, reflects, and scatters through water droplets, but there is a key ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...