Early in 1993, a manuscript landed in the Nature offices announcing the results of an unusual — even audacious — experiment. The investigators, led by planetary scientist and broadcaster Carl Sagan, ...

NPR's Ari Shapiro speaks with Dr. Robert Waldinger, one of the authors of The Good Life: Lessons from the World's Longest Scientific Study on Happiness. If you could change one thing about your life ...

Billions of years ago, Earth’s atmosphere was hostile, with barely any oxygen and toxic conditions for life. Researchers from the Earth-Life Science Institute studied Japan’s iron-rich hot springs, ...

In one of Kurt Vonnegut’s stories, God leaves it to humans to think of a purpose for everything, including "all this." Purpose both gives us something to live for and provides the foundation to pursue ...

Regents Review is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, LG TV ...