Researchers have solved an ancient mystery — what killed a group of prehistoric frogs. Prior research blamed lack of oxygen or dried up lakes, but the true culprit was a swamp mating death trap.
NPR's history podcast Throughline explores how opponents of abortion rights banded together, built power and launched one of the most successful grassroots campaigns of the past century.
Kelly Lytle Hernández's book, Bad Mexicans, tells the story of the rebels who fled from Mexico to the U.S. to publish an oppositional newspaper that would help spark revolution in Mexico.
At the height of the space race in the 1960s, Air Force Captain Ed Dwight was chosen to attend a special astronaut training program. He tells the story of what happened next.