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For centuries, people thought sap had to flow down a tree's body through a spigot at the bottom. But researchers have discovered that sap can flow upward, too, which allows syrup production from much younger trees, and could even turn maple syrup into a row crop.

You may not find South Sudan at the top of most dream destination lists, but the authors of a new travel guide say the young country, long isolated by a violent civil war, has much to offer tourists in search of wildlife, culture and natural beauty.

Al-Qaida operative Abu Anas al-Libi reportedly was snatched from a street in Libya, while a U.S. Navy SEAL team in Somalia met stiff resistance; it's not yet clear whether their target — a top al-Shabab leader — was killed.

So the world's most clandestine spy agency is working on something called a quantum computer. It's based on rules Einstein himself described as "spooky," and it can crack almost any code. That's got to be top-secret stuff, right? Guess again.

Steve Tran of Northern California had a big winner sitting on top of a drawer and didn't know it. When he finally got around to checking the ticket, though, he realized his life had changed.

Former New York City Mayor Michael Bloomberg will invest $10 million over two years to help top students from poor families into college.

The links between tanning beds and skin cancer are well known, but a survey of the top colleges and universities in the U.S. shows that many allow tanning beds on campus.

For this week's Sandwich Monday, we try the Pizza Cake, which is a fancy way of saying "a bunch of pizzas stacked on top of each other."

James Ostrer slathered himself and a few friends with cream cheese and then piled candy, doughnuts and fries on top. As he photographed these human sculptures, he found a sort of catharsis.

For toddlers, the risk is in taking a fall. Teenagers need to worry about car accidents, sports injuries and assault. Knowing how risks change can help prevent fatal or disabling brain injuries.