After 60 Years of Trying, Geologists Finally Pried Rocks From Earth's Upper Mantle

A statewide survey of California's bumblebees hopes to help conserve them — NPR's Ailsa Chang searches coastal California for wild bumblebees with conservation biologist Leif Richardson, one of the leaders of the California Bumble Bee Atlas.

Microplastics are everywhere. What does that mean for our immune systems? Tiny particles of plastic turn up in our drinking water, blood and even regions of the Earth thought to be pristine—so it’s vital we learn what they’re doing to us.

Scientists Harness Biology’s Favorite Chemical