Solar Airplane's Round-The-World Trip Is Halted Until 2016
Battery problems on the Solar Impulse, the airplane that has been flying around the world using only the sun's power, have grounded it until next spring.
Science
When Weed Is The Cure: A Doctor's Case for Medical Marijuana
Dr. David Casarett used to think of medical marijuana as "a joke." But after taking a deeper look, he's changed his mind. Casarett's new book is Stoned: A Doctor's Case for Medical Marijuana.
States Make Laws To Protect Patients From Hidden Medical Bills
Too many patients only learn after they get the bill that their insurer won't cover some medical services provided in the hospital. New laws in several states aim to stop those nasty surprises.
Hey Yogurt-Maker, Where'd You Get Those Microbes?
Making yogurt requires bacteria — but which strains of bacteria? There are dozens to choose from, and that choice affects yogurt's tartness and texture.
No. 1 With A Bullet Point: To Get Research Cited, Make Sure It's Listed First
Sometimes our eyes are just drawn to the top of a list. Using a regular e-mail of headlines sent out to economists, a study found the ones listed higher get read more — and cited more in future work.
NASA Spacecraft Flies Past Pluto After 10-Year Journey
On Tuesday morning, NASA's New Horizons spacecraft swooped past the surface of Pluto. The vast distance between Earth and Pluto means they're still waiting to hear what happened.
NASA Zooms In On Pluto, For Closest Views Yet
New images of Pluto are beginning to arrive from NASA's space probe, and they're already allowing scientists to update what we know about the dwarf planet.
How Long Would It Take To Drive To Pluto?
As New Horizons completes its journey to the far reaches of the solar system, NPR takes a look at just how long it takes to get to Pluto.
After Nuclear Deal, Iranian Oil Could Flow At Molasses Pace
Iran holds the fourth-largest oil reserves in the world, and the nuclear deal could mean millions oil barrels flowing into an already saturated market, pushing the global price down further.
Planet Or Not, Icy Pluto To Finally Get Its Day In The Sun
Astronomers kicked Pluto out of the planetary club in 2006 because of its small size. But scientists set to explore the surface Tuesday via a spacecraft's camera say those other guys are just wrong.