Hidden portrait of Russia's last czar revealed

Clean living can slash your risk for heart disease even if your genes are heavily stacked against you. A large study finds that people with the most inherited risk cut their chances of having a heart attack or other heart problems in half if they didn't smoke, ate well, exercised and stayed slim.

The moon doesn't get much bigger and brighter than this.

The moon doesn't get much bigger and brighter than this.

Scientists from the U.S. and Denmark are seeking to map out the plumbing system hidden inside the earth's crust that's responsible for the famous Old Faithful geyser and other hydrothermal features at Yellowstone National Park.

Beirut's National Museum has opened its basement of ancient treasures for the first time in four decades to show the public its stunning array of funerary art, including the world's largest collection of anthropoid sarcophogi.

Preservation experts have opened for the first time in at least two centuries what Christians believe is Jesus' tomb inside the Church of the Holy Sepulchre in Jerusalem.

A small, dark-feathered bird known as the common swift flies for 10 months on end without ever landing, the longest time spent aloft of any known bird, scientists said Thursday.

In the age of space travel, an American explorer is preparing to cross the Pacific Ocean from South America to Australia using a reed boat built by Bolivian Aymara Indians.

The eyes of a visiting archaeologist lit up when he was shown the 10 tiny, rusty discs that had sat unnoticed in storage for two and a half years at a dig on a southern Japan island.