NASA is preparing to launch a new satellite to observe carbon dioxide from space. The satellite could revolutionize our understanding of where this greenhouse gas comes from and where it goes.
Ectromagnetic theory says there should be a bit of matter that is unipolar: neither north or south. So far no one has found a magnetic monopole, but physicists at Amherst college have come close.
The U.S. doesn't routinely use the metric system. The U.S. government definition of a foot is 0.3048 meters. But if the length of a foot is based on the meter, what's the length of the meter based on?
Research shows narcissists can be induced to make environmentally positive purchases when those purchases are linked to the things narcissists value — prestige, status and image.
In 1864, Abraham Lincoln set aside the nation's first federally-protected wilderness areas. Visitors have enjoyed Yosemite's wonders ever since — sometimes to the point of endangering them.
On Titan, summer is almost three years away. But in a dark, placid ocean of natural gas, scientists have spotted something that could be the first inkling of springtime.
The release of U.S. Army Sgt. Bowe Bergdahl prompted a firestorm of debate. We step away from that debate to look at what's been learned about the psychological effects of being captured in wartime
Just in time for the official start of summer, NPR's Adam Frank heads outside to better understand the summer solstice. The secret, he says, is in the sunsets.
When bottles and bags are cast out to sea, the debris never truly goes away — it just gets smaller. And these plastic particles, called microplastics, are ready meals for fish and birds.