Bill Passman, a retired lawyer from Louisiana, has been tattooing his back with the places he’s visited for the last four years. He has visited 60 different countries, which means he now has more 50 percent of the world's surface area inked into his skin.

Without a Powerball winner this weekend, the prize has climbed to $400 million — one of the largest in U.S. lottery history.

Drivers, here's the bad news: You'll be paying more for gasoline in the coming weeks.The good news: You'll likely pay less than last year. Or the year before, or the year before that.

Pollution is a threat to marine life. As filter feeders, whale sharks are prone to gobble up plastic during their feeding sweeps.