Astronauts traveling to and from Mars would be bombarded with as much cosmic radiation as they'd get from a full-body CT scan about once a week for a year, researchers reported Thursday.

Sydney's oldest barmaid Lil Miles has never been a drinker, but after four decades in the job at her family's Bells Hotel in Woolloomooloo the 91-year-old still hasn't tired of pulling beers.

Tamiflu, the frontline treatment for influenza, offers no benefit for patients if it is administered in double the normal dose, a study conducted in Southeast Asia said on Thursday.

An Italian professor said on Wednesday he has identified what he believes is the world's oldest complete scroll of the Torah, containing the full text of the first five books of Hebrew scripture.

A Soyuz capsule carrying an American, Russian and Italian successfully docked Wednesday with the International Space Station, where the new crew will spend six months conducting a variety of experiments.

There's a new breed of dog in U.S. airports. They aren't sniffing for drugs or bombs — they're looking for people who need a friend, a belly to rub or a paw to shake.

A raven-sized creature that lived about 150 million years ago is back on its perch, a new study says.

Nepal celebrated the 60th anniversary of the climbing of Mount Everest on Wednesday by honoring climbers who followed in the footsteps of Edmund Hillary and Tenzing Norgay.

Obese mothers tend to have kids who become obese. Now provocative research suggests weight-loss surgery may help break that unhealthy cycle in an unexpected way — by affecting how their children's genes behave.

The 86th annual National Spelling Bee kicks off Tuesday with 281 youngsters from eight nations putting their ability to spell some of the most obscure words in the English language to the test.