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Astronaut Twins To Separate For The Sake Of Space Travel

Before NASA can send a manned mission to Mars, it needs to know more about how extended time in space affects the human body. Mark and Scott Kelly are the perfect subjects for such an experiment.

Fossil Fans Get Their Dino-Fix Before Smithsonian Renovates

The Museum of Natural History in Washington, D.C., got its new T. rex just in time to close its fossil hall for five years of renovations — longer than some dinosaur fans have even been alive.

For New York, The '10-Year Storm' Isn't What It Used To Be

A new study says the worst floods in the city are both higher and 20 times more common than they were 170 years ago. But climate change is only part of the reason.

Family Tree Of Pertussis Traced, Could Lead To Better Vaccine

Scientists tracking the ancestry of whooping cough say it arose abruptly in humans about 500 years ago, caused by a mutated bacterium that once lived only in animals. Genetic tricks helped it spread.

'Don't Touch Me,' Said Canada. 'I Won't!' Said The USA. So They Moved 20 Feet Apart

Canada and the USA agreed to create a 20-foot-wide corridor between them that runs for 5,500 continuous miles. Cartographers drew the line straight, but engineers built it crooked. Take a look.

'Blood Victory' In Medical Research Dispute

The Havasupai Native American tribe celebrated Blood Victory Day this week. That's the anniversary of their legal victory over researchers who misused members' blood samples without proper consent.
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To See Stars, Arlington Students Ask You To Dim The Lights Saturday Night

Light pollution washes out all but the brightest stars in the D.C. area, something a group of Arlington sixth graders are hoping to change for just 30 minutes on Saturday night.


Got My Goat? Vermont Farms Put Fresh Meat On Refugee Tables

Americans don't eat much barbecued goat, but the meat is a mainstay in many African, Asian and Caribbean diets. In Vermont, farmers raise it for refugees and immigrants, and hope to mainstream it.

Radioactive Leak At U.S. Waste Dump Was Preventable, Report Says

The Feb. 14 release of radioactive material at the facility in New Mexico that contaminated 21 workers was due to poor management and lack of oversight, the Department of Energy says.

Scientists Pinpoint Source Of Antarctic 'Quack'

For decades, a mysterious quacking "bio-duck" has been heard roaming the waters of the Southern Ocean. Now scientists say the source is a whale.