Color-changing mood rings, forehead fever strips and car-shade indicators all change hues as they warm and cool, thanks to a ...

Francis Ferrari, a French ophthalmologist, invented a controversial procedure that can change eye color. People from around ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Biotechnology is a broad discipline in which biological processes, organisms, cells or cellular components are exploited to develop new technologies. New tools and products developed by ...