The asteroid that wiped out dinosaurs hit in spring the northern hemisphere, a new study suggests. Scientists say animals in the different hemispheres may have fared differently after the event.
Trayvon Martin was killed a decade ago. The man who shot him used Florida's "Stand Your Ground" law as a successful defense. Critics say those laws are being abused and leading to more deaths.
A new artificial intelligence program has beaten the world's best players in the popular PlayStation racing game Gran Turismo Sport. But the impact could be felt far beyond that.
Arts therapies appear to ease brain disorders from Parkinson's to PTSD. Now, artists and scientists have launched an effort to understand how these treatments change the brain.
NPR's Mary Louise Kelly talks with Gregory Trencher, a co-author of a report that shows, despite pledges, BP, Chevron, Exxon Mobil and Shell aren't making changes needed to transition to clean energy.
Researchers at the University of Washington have developed a way of using DNA from elephant tusks to solve poaching mysteries and bring animal traffickers to justice.
Researchers at the University of Washington have developed a way of using DNA from elephant tusks to solve poaching mysteries and bring animal traffickers to justice.