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Science: Episodes

Scientists first figured the claw-tipped, giant arm bones found in 1965 belonged to an ostrichlike dinosaur. But its recently recovered skull looks more like a dino designed by a committee — of kids.
The North Carolina coast may be the last place you'd think to find a sunken German submarine from World War II. But that's what Joe Hoyt — a nautical archeologist — found on a recent expedition to the ocean floor. Robert Siegel talks to him about the underwater battle site there.
Just because the Food and Drug Administration recalls a supplement because it contains dangerous substances doesn't mean the product disappears from the market.
The World Health Organization says two vaccine candidates now undergoing small-scale tests of dosage and safety in people might be ready for broader deployment in Africa by early 2015.
Host Audie Cornish talks with Drew Gronewold, a hydrologist at the National Oceanic and Atmospheric Administration, about why water levels in lakes Superior, Michigan and Huron are rising.
The Department of Defense says climate change is an "immediate risk" to the nation. Adm. David Titley talks with NPR's Rachel Martin about how the military must respond.
NASA says it plans to replace the digital countdown timer that's featured prominently in broadcasts and images of Kennedy Space Center launches ever since the second moon landing mission 45 years ago.
For the first time, scientists are reporting that human embryonic stem cells may be helping treat patients — in one instance, the cells seem to been enabling some blind people to see better.
Cells derived from embryos appear to have improved vision in more than half of the 18 patients who had become legally blind because of two progressive, currently incurable eye diseases.
Most of the noise created by natural gas development is temporary. After drilling and fracking, the workers and equipment are gone. But compressor stations can stay noisy for years — even decades.
Women's voices are often criticized, especially at work. We're called "shrill," told we "lack authority." Here's t<em></em>he story of two women who changed their voices in a quest to be heard.
Starting Wednesday, six "astronauts" will live in a geodesic dome on a remote volcanic outcrop in an eight-month simulation of a Mars mission. Robert Siegel talks to commander Martha Lenio.
Jennifer Doudna used to worry that her science wasn't doing anything important. Then some basic research led her team to a discovery that could one day be crucial in healing some genetic diseases.
Heads of state from well over 100 countries came to New York City this week to find ways to slow climate change. The summit is a dry run for a meeting next year to draft a treaty on global warming.
The World Health Organization warns of more than 20,000 cases by early November if help doesn't arrive quickly in West Africa. The CDC projects 1.4 million cases by late January.
"There is such a thing as being too late," President Obama says in his address to the U.N. Climate Summit. The White House is touting tools to boost "global resilience" in the face of climate change.
India's Mars Orbiter Mission is set to reach Mars on Wednesday, just days after a U.S. NASA probe began its orbit around the Red Planet. The difference? India did it on a much tighter budget.
Donors like being part of a recovery story. It's hard to tell that kind of story about Ebola.
NASA's MAVEN spacecraft on Sunday night fired its six main rocket engines for 33 minutes. That slowed the probe down enough so it could be captured by the Red Planet's gravity.
It's not violence on the job that makes some pro football players beat their wives or children, psychologists say. It's often childhood experience, fanned by a culture that accepts such behavior.
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