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Science journalist Kara Platoni wants to know more about how our brains interpret what we see, hear, touch, taste and smell, and whether current research can expand our ability to perceive the world.

Activities once forbidden — cinema, music, women driving — are now OK. It makes some Saudis nervous. "I talk to younger people, they are happy with it," says a Saudi woman. "But older people are not."

If the whirr of a drill as it bores into a molar terrifies you, we have some good news. Dentists have better ways to prevent cavities in adults with fluoride treatments most commonly used on kids.

Astronomers have found about 2,000 planets beyond our solar system. Now, some scientists are expanding the search to look for distant moons, too, in the hunt for signs of life.

The San Diego-based destroyer USS Sterett is making a scheduled port call to Zhanjiang, China, the Navy announced Tuesday.

It's a new website with 8,000 radio stations from around the world. It's a way to travel to faraway places — and for immigrants to get a taste of home.

After more than 50 years of insurgency, Colombia's most notorious leftist militant group has handed over its guns and formed a political party that's now fielding its first election candidates.

Twitch broadcasts gamers to huge audiences around the world, and it boasts big potential when it comes to advertising dollars. Amazon CEO Jeff Bezos calls watching gameplay "a global phenomenon."

U.S. Catholics largely ignored a 1968 papal encyclical on birth control. But it prompted many more to broadly question their "pay, pray, obey" mindset.

The Shiite cleric venerated by millions has reached out to Saudi Arabia, distanced himself from Iran and is effectively burning down his own political movement by aligning with Communists.