Of Monsters and Men is an Icelandic sextet specializing in catchy folk-pop. The group came together in 2009 when singer Nanna Bryndís Hilmarsdóttir began recruiting backups for her acoustic solo act. In 2010, Of Monsters and Men gained national fame when it won an annual Icelandic battle of the bands; since then, the buzz has only grown.

Smoking is bad. Quitting smoking is hard. But exercising can make quitting easier, and make sliding back into smoking less likely.

That's the word from a big new study, which tracked the health and habits of 434,190 people in Taiwan from 1996 to 2008. Smokers who got just 15 minutes of exercise a day were 55 percent more likely to quit than were people who weren't active at all. And those active smokers were 43 percent less likely to relapse when they did quit.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. We're here in California, broadcasting from the California Academy of Sciences in San Francisco. And just outside the Golden Gate, of course, is the Pacific Ocean. It is the largest body of water on Earth, and its trenches are also the deepest. You could put Mount Everest into some of them, and the top would not even peek out.

A story and two questions on the New York state English exam taken by eighth-graders this week has stumped many — including Jeopardy! star Ken Jennings.

The story — titled The Pineapple and the Hare — was included in a New York Daily News story about the consternation the questions have caused.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Where is the safest place to be during an earthquake? Yeah. Here, in San Francisco, everybody is shaking their head.

(SOUNDBITE OF LAUGHTER)

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IRA FLATOW, HOST:

Joining us now is our multimedia editor Flora Lichtman who is - welcome to SCIENCE FRIDAY, of course.

FLORA LICHTMAN, BYLINE: Thanks.

FLATOW: We'll have a backend. We have our Video Pick of the Week today, sort of an oldie goldie, right?

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. We're here in California, broadcasting from the California Academy of Sciences in San Francisco. And while you might think Silicon Valley or biotech when you think of Northern California, this part of the state is also home to some of the biggest names in the movie business.

A photograph published by ABC News this morning shows what the network says is the head of George Zimmerman covered in blood. ABC News says the picture was taken minutes after Zimmerman shot Trayvon Martin to death.

The 28-year-old neighborhood watch volunteer is charged with second-degree murder in the shooting, but he has maintained that he shot Martin, who was unarmed and on his way back from buying candy and tea, in self defense.