The Solar Impulse 2 landed in Abu Dhabi, where its journey began 17 flights ago in March 2015. Alternating with another pilot, Bertrand Piccard flew around the world with no fuel.
New research suggests it may be possible to spot people in the early stages of Alzheimer's by testing their ability to recognize fragrances. The goal is a quick and inexpensive screening test.
Dolly, the first cloned mammal, had early arthritis and died young, raising concerns that clones age prematurely. But a study confirms the sheep's four sister clones are healthy and aging well.
"This is not only a first in the history of aviation; it's before all a first in the history of energy," Swiss pilot Bertrand Piccard says. His plane flew more than 26,700 miles without using fuel.
An oil slick has forced the city of Prince Albert, Saskatchewan, to shut down its water treatment plant, after a pipeline dumped tens of thousands of gallons into the North Saskatchewan River.
The body of a man was found in an area burned by a 33,000 acre wildfire north of Los Angeles. The Sand Fire has destroyed more than a dozen homes and is one of 19 major fires burning in California.
A new study of old masters finds that capturing and showing off decadent and expensive meals is a decidedly old-fashioned practice. Like today's Instagrammers, it was all about projecting an image.
Fredrik Sjöberg had been hunting for hoverflies for 30 years. But his collection wasn't complete without the rare and beautiful Callicera fly.
Speech therapist Wendy Chase helps transgender people make their voices sound like their gender identity. She says how people communicate affects how they are perceived.
AIDS is the biggest killer of young women in southern Africa, where many are sexually abused. The CEO of a nonprofit is trying to tip the balance to women with an unlikely tool: a vaginal ring.
A shy woman becomes a brave warrior princess. A man calls on Captain America to help him lose 45 pounds. In costume role play they become part of a community where they can transform themselves.
Few people can demand what kind of electricity they get. But Microsoft and Facebook, which operate huge, power-hungry data centers, are trying to green up the electricity grid with their buying power.
When we invented shoes, we slipped a surface between ourselves and the world. Ever wonder if this is the moment mankind fell from grace? No? Well, for better or worse, NPR's Colin Dwyer has.
It's over 100 degrees Fahrenheit in much of the Midwest, South and East, and the culprit is hot air trapped under an atmospheric pressure lid that heats it up even further.
The social media company's high-altitude, unmanned, solar-powered drone is designed to provide wireless Internet coverage to the ground below.
He's the man with a seemingly endless stream of science fun facts at his command. He's also a great gourmet. We talk to the famed scientist about how his two great passions collide in the kitchen.
Cass Frankenstein started wearing sunglasses to protect himself from bullies. Decades later, he still wears them. Some friends and relatives say that holds people at bay. But he says it's worth it.
It sounds like a fairy tale but it's real. A study shows how wild birds and people communicate to find bees' nests and share the sweet honeycomb. The teamwork may date back thousands of years or more.
The microbes that inhabit our bodies evolved with us for millions of years, providing new evidence of the symbiotic role our bacteria play in our lives.
NPR's podcast and show Invisibilia explore how clothes shape who people think we are and who we want to be. Hanna Rosin tells the tale of an Auschwitz prisoner who appropriated a Nazi's shirt.