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The same kind of technology that recommends movies on Netflix or purchases on Amazon is now helping students choose college courses. A new program developed on a campus in Tennessee uses predictive analytics to suggest classes and is seen as a way to make higher education more efficient.

In Silicon Valley, zero profit and even zero revenue don't make a company a loser. Tech companies like Snapchat and Twitter, which have not yet turned any profit, can be worth billions of dollars based on future potential alone.

Now is a good time to spot gray whales off the coast of Southern California, but scientists have been seeing an unusually high number of other whales. "The fact that we're getting a chance to see at this time of year fin whales, blue whales, is really a mystery," says a marine biologist.

Paleo was Google's most searched diet for 2013, but that doesn't mean it went mainstream. Instead, media coverage of one book criticizing the diet may have stoked much of the interest in the diet.

Early Tuesday, Israel released another group of Palestinian prisoners convicted of violent crimes against Israelis. Former prisoner Omar Masoud says the releases legitimize the peace process for Palestinians. But the family of his Israeli victim says it's unacceptable for Israel to sell "our blood as a gesture."

A Swedish inventor created a watch that counts down the seconds left in your life. He calls it "the happiness watch" because he thinks living with the reality of one's mortality can enhance our lives.

Long gone, but never forgotten, Voyager 1 is about 12 billion miles from home and now sailing through interstellar space, scientists were thrilled to confirm in 2013. The spacecraft carries with it a generation's dreams.

Later this week the American Dialect Society will announce its word of the Year. Renee Montagne discusses word contenders with linguist Ben Zimmer, who is the language columnist for The Wall Street Journal.

Today is the deadline for Syria to hand over about 500 tons of ingredients for its chemical weapons including the deadliest: Sarin and mustard gas. Renee Montagne talks to Ake Sellstrom, who headed the U.N. team of inspectors investigating the use of chemical weapons in Syria.

Icebreakers haven't been able to reach the MV Akademik Shokalskiy, which is trapped in ice. As soon as the weather clears, it's hoped that a helicopter will be able to reach the scene and then carry passengers to other ships nearby.