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Researchers Point To The Demise of the Dinosaurs

The idea that a comet or asteroid impact led to the downfall of the dinosaurs has been around for years. Now, Paul Renne and colleagues report in Science that they've narrowed down the timing of that collision. It's practically simultaneous with dinosaur extinction.
NPR

Tracking Privacy and Ownership In An On-Line World

Your phone knows where you are. Social networks know who your friends are, and what you ate last night. How much of your personal data is really yours to control? Khaliah Barnes of the Electronic Privacy Information Center helps sort out the politics and policies of privacy.
NPR

Astronaut And Rocker Pen First Earth-Space Duet

Talk about the ultimate space jam. The song is called "I.S.S. (Is Somebody Singing)," and it's a very long-distance collaboration between Canadians Ed Robertson of Barenaked Ladies and Chris Hadfield, who currently commands the International Space Station. The song premiered Friday.
NPR

Close Shave: Asteroid To Buzz Earth Next Week

At its closest approach, the office building-sized asteroid will be only about 17,200 miles above the surface of our planet. That's far nearer to us than the moon, and even closer than some weather and communications satellites. Some people think this near miss should serve as a wake-up call.
NPR

Fresh Clues In Dinosaur Whodunit Point To Asteroid

What killed the dinosaurs? It's history's ultimate murder mystery, and for decades the prime suspect has been a giant asteroid. New data suggest that it struck right before the extinction. But scientists say it still may not tell the full story of what happened to the dinosaurs.
WAMU 88.5

Inside Addiction Treatment

People with drug and alcohol addictions often enter a rehabilitation for treatment. A panel joins Diane to discuss what works and what does not.

NPR

Silica Rule Changes Delayed While Workers Face Health Risks

Regulations to restrict the amount of silica dust that workers can inhale was set decades ago, and workplace safety experts say that limit needs to be cut in half. A proposal for new rules was sent to the White House Office of Management and Budget for a 90-day review, but almost two years later, it's still under review.

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