For the first time, researchers have used artificial intelligence to generate novel viruses in a laboratory setting, according to a paper in the journal Science.

A powerful 7.4-magnitude earthquake shook dozens of cities and towns in Colombia on Monday.

Loggerhead turtles are having a record nesting season in the U.S., but not so much in other parts of the world.

Our brains aren’t wired to like the uncertainty that comes with change.

The North American prairie rivals the Amazon rainforest in its biological diversity, and it’s disappearing even faster.

The military plans to start screening service members for low testosterone, and social media is overflowing with claims about testosterone therapy. But who actually needs it?

It will be visible in parts of the U.S. on Wednesday.

NPR's Rob Schmitz talks to reporter Maria Godoy about how parents can wade through the noise and opinions to find information to help keep their kids healthy.

The internationally acclaimed horseman defied the conventional method of breaking horses and developed his own gentler approach — based on horses' non-verbal language. Roberts spoke with Fresh Air in 1997.

Blowing up an Earthbound asteroid may seem like an idea only conceivable in science fiction films, but a team of scientists is now working on an audacious plan to do it.