NPR News

This interview was originally broadcast on Dec. 13, 2010.

The HeLa cell line — one of the most revolutionary tools of biomedical research — has played a part in some of the world's most important medical advances, from the polio vaccine to in vitro fertilization.

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NEAL CONAN, HOST:

Earlier this week, Pope Benedict XVI announced that he would be retiring from his position, but he's not the only prominent Catholic stepping down. Host Michel Martin speaks with top Catholic lobbyist and policy adviser, John Carr, about his own retirement and what's next for him and the Church.

The latest person to sue a university over a "bad" grade has failed to make her case.

As the Allentown, Pa., Morning Call reports, "a Northampton County judge on Thursday rejected the claims of a Lehigh University graduate suing over her C+ grade, a verdict that upheld the school's insistence that she earned the mark she got."

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Anyone who's taken a high school science class knows the name Isaac Newton. You remember this tale: He's sitting under a tree, an apple falls on his head, he figures out gravity, or so the story goes. Not really true.

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IRA FLATOW, HOST:

Flora Lichtman's here, switched hats again.

FLORA LICHTMAN, BYLINE: Switching gears.

FLATOW: Switching gears, and our gear is our Video Pick of the Week, and it's a real - as always, a real cool one.

LICHTMAN: This one, yeah, very cool. We're to the earthly pleasures now - part - segment of the show. It's about art. We went and visited the studio of artist Toni Dove, and she makes the art - the kind of art that's just my style. It satisfies my craving for fantasy, and also my real nerdy, geeky side.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. Early this morning...

(SOUNDBITE OF EXPLOSION)

FLATOW: You heard it, a meteor exploded over Central Russia. It rattled buildings, shattered glass over a wide area, causing hundreds of injuries estimated at 900 or more at this hour. And at this very moment another asteroid, half the size of a football field, is speeding towards our planet. But there's no need to panic. This one is not raining space rocks, say scientists.

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IRA FLATOW, HOST:

As a journalist, I've known Katherine Bouton for over 30 years. I first met her on a trip to Antarctica in 1979. A famous picture of me interviewing penguins was taken by Ms. Bouton. But I was never fully aware of the extent of the private battle she has been fighting, an invisible condition that affects 50 million Americans, I'm talking about hearing loss.