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Updated: 1 hour 31 sec ago

Is HIV Evolving Into A Weaker Virus?

Wed, 12/03/2014 - 1:35pm

In parts of southern Africa, HIV has picked up mutations that slow down its ability to grow inside a person's blood. That's a good sign. But will it be enough to make a difference in the epidemic?

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Earliest Human Engraving Or Trash From An Ancient Lunch?

Wed, 12/03/2014 - 12:03pm

Carved zigzag marks on a shell found more than a century ago have drawn new interest from archaeologists. The half-million-year-old lines aren't from an animal, and might be art from Homo erectus.

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Our Ability To Digest Alcohol May Have Been Key To Our Survival

Wed, 12/03/2014 - 11:19am

Our primate ancestors were consuming alcohol 10 million years ago in the form of fermented fruit, researchers have discovered. The finding suggests our relationship with alcohol is ancient.

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FDA Considers Allowing Blood Donations From Some Gay Men

Tue, 12/02/2014 - 4:36pm

The lifetime ban on blood from any man who has had sex with men dates to the 1980s, before there was a good test to screen for HIV. Critics say the policy is outmoded and needlessly discriminatory.

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NASA Prepares To Test New Spacecraft (That You've Likely Never Heard Of)

Tue, 12/02/2014 - 4:45am

The new vehicle, named Orion, is designed to carry humans into deep space. But most Americans aren't aware it exists.

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Study Shows Riding The Quiet Car Is Crushing Your Spirit

Tue, 12/02/2014 - 3:59am

An experiment in Chicago randomly assigned train and bus riders to either talk to the stranger next to them or commute quietly. The result? Even for introverts, silence leaves you sadder.

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Tumbling Oil Prices Give A Boost To Drivers During The Holidays

Mon, 12/01/2014 - 3:22pm

An OPEC meeting last week sent oil prices tumbling when the cartel decided not to restrict production to boost prices. Now some are predicting parts of the U.S. will see gas prices under $2 a gallon.

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Ebola In The Air: What Science Says About How The Virus Spreads

Mon, 12/01/2014 - 11:29am

Turns out, Ebola is transmitted through the air, but it's not very good at spreading through the airborne route. What in the heck does that mean? We dig into the science to clear up the kerfuffle.

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Taking Stock Of America's Toxic Sites And The Millions Living Near Them

Sun, 11/30/2014 - 4:04pm

A recent National Geographic article looks at toxic waste sites in the U.S. and the more than 49 million Americans who live near them. NPR's Eric Westervelt talks with writer Paul Voosen about his piece.

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Millennials Might Be 'Generation Twin.' Is That A Bad Thing?

Sat, 11/29/2014 - 3:57pm

Between 1981 and 2012, 1 million extra twins were born in the U.S. One economist says all of those twins could be hurting the economy — but another expert points out some perks of twinhood.

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The Mystery Of The Missing Brains

Sat, 11/29/2014 - 6:45am

For decades, a rare collection of human remains sat in a basement closet at the University of Texas. A new book tells the story of that collection — and the enduring mysteries that surround it.

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How Dogs Understand What We Say

Fri, 11/28/2014 - 3:06am

Dogs pay close attention to the emotion in our voices, but what about the meaning of words? A clever experiment with 250 canines shows that dogs understand more of our speech than previously thought.

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Could Turkey Breeders Cure The Ailments Of Our Big-Breasted Birds?

Thu, 11/27/2014 - 6:03am

The standard commercial American turkey is the product of decades of intense selective breeding. But breeding for efficiency and size has created new health problems scientists must grapple with.

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Scientists Analyze Skeletal Remains From Vampire Graveyard

Thu, 11/27/2014 - 3:42am

Lab scientists are trying to understand why some corpses buried in northwestern Poland were singled out for special anti-vampire treatments, such as putting a sickle around the neck.

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Search For Political Common Ground Is Difficult, Research Shows

Thu, 11/27/2014 - 3:42am

New research into the nature of intractable political conflicts might shed some light on how to address the perennial arguments that break out across Thanksgiving tables.

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Colorectal Cancer Cases Are Dropping — Except Among Young Adults

Wed, 11/26/2014 - 3:53pm

The number of Americans getting and dying from colorectal cancer has been dropping steadily except for one group — younger adults.

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Shrinking Sea Ice Could Put Polar Bears In Grave Peril By 2100

Wed, 11/26/2014 - 3:53pm

A new study looks at the future of the Canadian Arctic Archipelago and finds that by the end of this century, the region might be ice-free for 2 to 5 months, something that puts bears in grave peril.

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Lower Ozone Standard Would Raise The Compliance Bar For Business

Wed, 11/26/2014 - 3:53pm

Public health groups say lower levels will benefit people who suffer from asthma or other respiratory illnesses. Business groups say it's another expensive hoop to jump through.

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Ebola Is Changing Course In Liberia. Will The U.S. Military Adapt?

Tue, 11/25/2014 - 4:59pm

The U.S. had planned to build 17 treatment units across Liberia, one in each county's major town. Now that more cases are appearing in remote areas, the Army may need to rethink its strategy.

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How Can Vultures Eat Rotten Roadkill And Survive?

Tue, 11/25/2014 - 10:24am

Vultures consume toxic bacteria that would sicken or kill humans. Stouter immune systems, colonies of helpful microbes and potent stomach acid may help the carrion eaters gorge with abandon.

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