"Men wanted for hazardous journey" read the ad in a London paper. So began a journey they would never forget. Follow the expedition through great text and pictures.

Cross-country skiers are among the fittest athletes in the world. Deborah King, an associate professor in the Department of Exercise and Sports Sciences at Ithaca College and Joseph Francisco, president of the American Chemical Society,...

This video segment adapted from NOVA uses microwave images to reveal how sea ice doubles the size of Antarctica each winter. Rare footage shows how sea ice crushed the famous ship Endurance in 1914. [2:34]

Are you ready to exercise? Herry's here to show you some moves to help you stay in shape. Get ready to touch your toes and jog in place and learn fun and healthy ways to build your strength. [3:35]

In running, you've all seen the sprinter and the marathoner. One looks like an 80's movie character and the other like he has had too many crash course diets. They are both runners so how come they don't look alike? This video explains...