There's two stories about space junk today: First, the AP reports that the International Space Station had to fire its engines to move out of the way of some space junk.

"NASA officials said debris from an old U.S. private communication satellite would have come within three miles of the orbiting outpost on Friday had the station not changed its orbit," the AP reports.

The dynamic duo of PBS host Tavis Smiley and professor/activist Cornel West was it again in Washington Thursday evening during a live television broadcast of a program addressing poverty.

The two have made a traveling roadshow out of their roles as the loudest African-American critics of President Obama.

Ten years after the Salt Lake City Winter Olympics, there's still some debate about Mitt Romney's claim that he helped "save" the games — and about whether he used the Olympics to relaunch a fledgling political career.

In 1999, Romney accepted the job as CEO of the Salt Lake Organizing Committee (SLOC), five years after he failed to oust Sen. Ted Kennedy from his Massachusetts Senate seat.

Four years ago, Texas Rep. Ron Paul finished fifth in the New Hampshire presidential primary with just under 8 percent of the vote.

On Tuesday, he got nearly 23 percent of the vote in the New Hampshire primary, finishing second to former Massachusetts Gov. Mitt Romney in the Republican contest. That came a week after Paul's third-place finish in the Iowa caucuses.

A year ago today, India saw its last recorded case of polio in an 18-month-old girl in West Bengal named Rukhsar Khatoon. She recovered without lasting paralysis.

One year without another case is an impressive milestone in the decades-long effort to wipe the poliovirus from the face of the planet. Only a few years ago, India reported more polio cases than anywhere else — as many as 100,000 cases a year.

For more than 20 years, Tori Amos has been one of the most inventive and distinctive singer-songwriters in contemporary music. With eight Grammy nominations and millions of albums sold worldwide, Amos has become a living legend. Her solo career has evolved unpredictably, from acoustic piano to electronica and orchestral styles.

When you open a tub of yogurt, do you pour off that cloudy layer of liquid that collects on the top? If so, you're not just wasting nutritious protein and lactose – you're tossing out what some scientists see as a valuable raw material.

Strange though it might seem, researchers at the Fraunhofer Institute for Process Engineering in Germany announced this week that they're turning whey into plastic-like films.

I can't imagine a more stimulating conversation opener than "God is dead." Indeed, this quote by Friedrich Nietzsche sparked heated debate in his time, as it still does today. But how many of us know the writings of this 19th-century philosopher?

Bob Jones University used to be a "station of the cross for aspiring presidential candidates," NPR's Ari Shapiro reports on Friday's All Things Considered. Candidates like Ronald Reagan, Bob Dole and Pat Buchanan all spoke at the school, a "bastion of the most conservative brand of evangelical Christianity," Shapiro says.