Science

Technology
12:16 pm
Fri February 8, 2013

Automakers Drive Towards Hydrogen Cars

Toyota and BMW have formed an alliance to work on fuel cell cars. So have Daimler, Ford, and Nissan, with hopes of having cars on the road by 2017. But why now, and what obstacles still stand in the way? Jennifer Kurtz discusses the current state of hydrogen fuel technology.

NPR Story
11:57 am
Fri February 8, 2013

Tracking Privacy and Ownership In An Online World

Originally published on Mon February 11, 2013 12:03 pm

Transcript

JOE PALCA, HOST:

This is SCIENCE FRIDAY; I'm Joe Palca. Do you ever get the feeling you're being watched? These days if you're not careful, your phone knows where you are, and there's a good chance somebody else does, too. Or you've noticed that the ads on sites you visit are starting to look a little too personalized, like how did they know I was planning a vacation to New Orleans.

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NPR Story
11:57 am
Fri February 8, 2013

Researchers Point To The Demise of the Dinosaurs

Originally published on Fri February 8, 2013 12:35 pm

Transcript

JOE PALCA, HOST:

This is SCIENCE FRIDAY. I'm Joe Palca.

You know the theory that a big collision, a comet or an asteroid, something like that, helped kill off the dinosaurs? The idea has been around for a while. But this week, new research published in journal Science provides more accurate dates for the giant impact and the dino demise.

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NPR Story
11:57 am
Fri February 8, 2013

Science of Slumber: How Sleep Affects Your Memory

Originally published on Fri February 8, 2013 2:55 pm

Transcript

JOE PALCA, HOST:

This is SCIENCE FRIDAY. I'm Joe Palca, sitting in for Ira Flatow. If you add it up, we spend a lot of time sleeping, about a third of our lives, actually, and it turns out our bodies don't just power down as we slumber. Research is showing that sleep plays an important role in how our brains process and store the information that we learn throughout the day.

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Space
2:35 am
Fri February 8, 2013

Close Shave: Asteroid To Buzz Earth Next Week

This computer image from a NASA video shows the small asteroid 2012 DA14 on its path as it passes by Earth on Feb. 15.
NASA

Originally published on Thu March 20, 2014 3:36 pm

An asteroid the size of an office building will zoom close by Earth next week, but it's not on a collision course, NASA says.

Still, some people think this near-miss should serve as a wake-up call.

"It's a warning shot across our bow that we are flying around the solar system in a shooting gallery," says Ed Lu, a former astronaut and head of the B612 Foundation, a nonprofit dedicated to protecting humanity from asteroids.

The asteroid known as 2012 DA14 was first spotted last year by astronomers in Spain. It's thought to be about 150 feet across and made of rock.

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