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Updated: 22 min 37 sec ago

National Park Service Celebrates 100th Anniversary

Mon, 04/25/2016 - 3:30pm

The National Park Service is celebrating the 100th anniversary of its creation this year. NPR spends time on the job with workers in the country's busiest national park, Great Smoky Mountains National Park, to explore the vast variety of work the park service does and the challenges it's facing.

Babies Who Eat Rice Cereal Have Higher Arsenic Levels, Study Finds

Mon, 04/25/2016 - 2:49pm

Multiple studies have found that rice-based foods contain traces of arsenic. Now a study finds babies fed rice cereals and other rice-based snacks have higher concentrations of arsenic in their urine.

These Earth-Saving Robots Might Be The Future Recyclers

Sun, 04/24/2016 - 1:32pm

Apple recently unveiled Liam, a robot with 29 arms that takes apart iPhones so materials can be recycled and reused. As we accumulate more waste, recycling robots like Liam might become more common.

Astronaut Completes London Marathon From The International Space Station

Sun, 04/24/2016 - 1:04pm

About 38,000 runners competed in the London Marathon today – and one of them ran it in orbit 200 miles above Earth. British astronaut Tim Peake says microgravity is "perfect" for post-race recovery.

Experimental Solar-Powered Plane Completes Journey Across The Pacific

Sun, 04/24/2016 - 7:39am

Solar Impulse 2 flew for three days from Hawaii to Calif., after a nine month delay for repairs. The team is aiming to complete a round-the-world journey using only the sun's power.

Reef Larger Than Delaware Found At The Mouth Of The Amazon River

Sat, 04/23/2016 - 2:36pm

The reef is unusual because it lies in muddy waters, and scientists had only seen hints of its existence until recent research expeditions. They say it's already in danger because of oil drilling.

#NPRreads: 3 Stories To Soak Up This Weekend

Sat, 04/23/2016 - 7:28am

The premise of #NPRreads is simple: Correspondents, editors and producers from our newsroom share the pieces that have kept them reading and each weekend, we highlight some of the best stories.

How Do Ants Survive Floods? Rafts Of Course

Sat, 04/23/2016 - 6:47am

Scott Simon talks with entomologist Jessica Purcell about her research into the ingenious strategy one kind of European ant uses to stay safe in floods: joining their bodies to form floating rafts.

Listeners Got Active About Our Active Learning Stories

Sat, 04/23/2016 - 5:55am

Two recent reports on a Stanford Noble Laureate's efforts to change how undergraduate science education struck a nerve with many of you.

For Earth Day, Report Has News To Ease A Meat-Lover's Conscience

Fri, 04/22/2016 - 5:26pm

The World Resources Institute says you don't have to bid burgers bye-bye in order to reduce the environmental footprint of what you eat. Americans cutting back on beef could go a long way, it says.

Florida Keys Weigh Options For Battling Mosquitoes And Zika

Fri, 04/22/2016 - 4:25pm

Residents of these islands have waged many campaigns against disease-carrying mosquitoes. But there's still not much agreement at public meetings about how the mosquitoes should be controlled.

#EarthDay: Defending The Planet And Paying With Their Lives

Fri, 04/22/2016 - 3:34pm

Why the world's poorest people are some of the most effective — and vulnerable — environmental activists.

U.S. Proposes Removing Yellowstone Grizzly Bears From Endangered Species List

Fri, 04/22/2016 - 3:32pm

Grizzly bears in Yellowstone may soon lose protection from the federal government. The U.S. Fish and Wildlife Service proposed taking the bears off the endangered species list, saying the population has recovered to a self-sustaining number. Opponents dispute that, in part because they say federal biologists aren't sufficiently accounting for climate change threatening their food sources.

Earth Day Brings Celebrations, Signing Of Historic Climate Pact

Fri, 04/22/2016 - 11:14am

Earth Day brings everything from special Google Doodles and beautiful views of our planet to the historic signing of an international climate agreement.

Task Force Calls For More Safety Oversight At NIH Research Hospital

Thu, 04/21/2016 - 4:06pm

NIH Director Francis Collins has stopped research at two leading labs for now. But an independent board of experts wants even more oversight to ensure patient safety is the top priority.

Experimental Solar-Powered Plane Takes Flight After 9 Month Delay

Thu, 04/21/2016 - 11:30am

Solar Impulse 2 is attempting to circumnavigate the world using only the sun's power. It has been grounded in Hawaii for repairs and is now on a three day journey heading to California.

Half Your Brain Stands Guard When Sleeping In A New Place

Thu, 04/21/2016 - 11:03am

No wonder we don't feel rested after a first night in a new place: Half of our brain has stayed alert while the other half enjoyed deeper sleep, a study finds. We really have been half-asleep.

Can The U.S. And China Keep Their Climate Pledges?

Thu, 04/21/2016 - 9:32am

The two nations topping the world in greenhouse gas emissions agreed at the Paris talks to cut way back. But critics have stalled a key part of the U.S. plan, and China's good start may be fragile.

Climate Change? Some People May Not Be Sweating It Because The Weather Is Nicer

Wed, 04/20/2016 - 12:03pm

Researchers say climate change has made weather more pleasant in many parts of the U.S. Winters have been milder, and summers haven't become much hotter. But that's likely to change in coming years.

NIH Halts Some Research Amid Concerns Over Contamination And Safety

Tue, 04/19/2016 - 4:26pm

The National Institutes of Health shut down some clinical trials and two production facilities due to concerns that safety rules haven't been followed, but says no patients appear to have been hurt.

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