Science & Environment

NPR Story
12:11 pm
Fri October 5, 2012

How Astronomers Measured the Edge of a Black Hole

Originally published on Fri October 5, 2012 1:41 pm

Transcript

IRA FLATOW, HOST:

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NPR Story
12:11 pm
Fri October 5, 2012

Why Mobile Maps Sometimes Lose Their Way

Originally published on Fri October 5, 2012 1:03 pm

Transcript

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow.

UNIDENTIFIED WOMAN: Starting route to Empire State Building: Head northwest on West 43rd Street.

FLATOW: That's the voice of Apple's maps app for iOS 6. She sounds confident enough, but how do you know she'll actually lead you to the correct destination? Because as users all over the world have figured out, Apple's maps and their driving directions have some serious problems. Apple has even apologized for it.

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NPR Story
12:11 pm
Fri October 5, 2012

What Your Genes Can Tell You About Your Memory

Originally published on Fri October 5, 2012 1:03 pm

A recent study conducted at the University of Pennsylvania identified key molecules involved in forming long-term memories. Experts discuss how this is the latest in a growing field of research on how our bodies regulate our genes, and how this process affects our memories.

NPR Story
12:11 pm
Fri October 5, 2012

Starfish Blamed For Great Barrier Reef Coral Loss

Originally published on Fri October 5, 2012 1:03 pm

Over the past 27 years, Australia's Great Barrier Reef has lost half of its live coral cover, and a type of starfish is partly to blame for the alarming decline. Mark Eakin, head of NOAA's Coral Reef Watch program, discusses how to save the world's largest coral reef system.

NPR Story
12:11 pm
Fri October 5, 2012

A Beetle That Puts The 'Extreme' in Extremity

Originally published on Fri October 5, 2012 1:03 pm

Transcript

IRA FLATOW, HOST:

Flora Lichtman is here with our Video Pick of the Week. Hi, Flora.

FLORA LICHTMAN, BYLINE: Hi, Ira.

FLATOW: What you got for us this week?

LICHTMAN: This week's video pick is about a very menacing creature, and I want to give our listeners a chance to guess what it is based on some clues from University of Montana, biologist Doug Emlen and Erin McCullough.

ERIN MCCULLOUGH: These males have a giant pitchfork sticking out of their forehead.

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Krulwich Wonders...
10:12 am
Fri October 5, 2012

Animals Who Love to Rub Themselves With Ants. Is This Addictive?

Adam Cole NPR

Originally published on Fri October 5, 2012 11:28 am

This is how we do it.

This is how they do it.

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Research News
5:33 am
Fri October 5, 2012

Scientists Use Stem Cells To Create Eggs In Mice

Transcript

RENEE MONTAGNE, HOST:

Scientists have, for the first time, used stem cells to create eggs in mice. This long-sought breakthrough raises the possibility of some day doing the same thing to help treat infertility in people. As NPR's Rob Stein reports, that's generating a lot of debate.

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Shots - Health Blog
2:23 pm
Thu October 4, 2012

Scientists Create Fertile Eggs From Mouse Stem Cells

Each of these mouse pups was born from an egg scientists created using embryonic stem cells. It's possible the technology could change future treatment for human infertility.
Katsuhiko Hayashi

Originally published on Thu October 4, 2012 8:45 pm

Scientists in Japan report they have created eggs from stem cells in a mammal for the first time. And the researchers went on to breed healthy offspring from the eggs they created.

While the experiments involved mice, the work is being met with excitement — and questions — about doing the same thing for humans someday.

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The Salt
1:48 pm
Thu October 4, 2012

The Cost Of Saving Lives With Local Peanuts In Haiti

Alex E. Proimos flickr

Originally published on Fri October 5, 2012 4:05 pm

How much extra would you pay for local food? It's a familiar question. We face it practically every time we shop for groceries, either at the store or at the farmers market. But what about food that can save the lives of severely malnourished children?

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Krulwich Wonders...
11:03 am
Wed October 3, 2012

Are Those Spidery Black Things On Mars Dangerous? (Yup.)

Michael Benson NASA/JPL/University of Arizona/Kinetikon Pictures

Originally published on Thu October 4, 2012 4:43 pm

You are 200 miles directly above the Martian surface — looking down. This image was taken by the Mars Reconnaissance Orbiter on Jan. 27, 2010. (The color was added later.) What do we see? Well, sand, mostly. As you scroll down, there's a ridge crossing through the image, then a plain, then dunes, but keep looking. You will notice, when you get to the dunes, there are little black flecks dotting the ridges, mostly on the sunny side, like sunbathing spiders sitting in rows. Can you see them?

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