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Ultraviolet light can burn your skin and raise the risk for skin cancer. New research has helped uncover how the rays can weaken skin's outer layer, compromising its ability to protect the body.

From Earth, lifeless Mars can seem like a serene and boring planet. However, scientists noticed some little black dots in a satellite image of the Martian sand that may hint at an exciting, explosive geography.

Ken Rensink was 19 when he was disabled in a car accident. After 15 years out of the workforce, he decided to devote himself to teaching special education. He's now been at it for more than a decade. "I'm trying to help create folks who will not get rolled by life," he says.

Michelle Obama has bested Ann Romney in Family Circle magazine's latest "First Lady Cookie Contest." It's been held for 20 years, since Hillary Rodham Clinton tweaked cookie bakers everywhere with a derisive comment to her own critics that she "could have stayed home and baked cookies" rather than pursue her career." And while it's meant as good, tasty fun, it does have its critics, who wonder if a potential First Gentlemen would be asked to prove himself by baking cookies. Audie Cornish and Melissa Block have more.

Melissa Block talks to Joe Lemire, baseball writer for Sports Illustrated, about Major League Baseball's postseason.

It's official: Sean Connery IS James Bond, according to NPR readers who weighed the question this week. Connery set the gold standard as 007, the spy known for his playfulness, his ruthlessness — and his ability to look good in a suit. The Bond film franchise turns 50 today.

The emirate of Dubai has created many wonders: a ski hill in the desert and the world's tallest building. Now the luxury hotel Taj Arabia will be a replica of the Taj Mahal — only four times the size.

Abu Hamza al-Masri, a radical Muslim preacher, is wanted in the U.S. for allegedly trying to set up a terrorist training camp.

Today's news about a drop in the unemployment rate has some of President Obama's critics speculating about cooked books. Labor Secretary Hilda Solis says such talk is "ludicrous."

For the first time in nearly four years, unemployment is below 8 percent. It's already heating up the election discussion on the economy. But Wednesday's debate left some confused about where the candidates stand. Host Michel Martin looks at the candidates' economic platforms with NPR's Marilyn Geewax and The Wall Street Journal's Sudeep Reddy.