NOVA scienceNOW

Trapped in Salt Biophysicist Jack Griffith takes you on a narrated photo tour of quarter-billion-year-old water bubbles. Learn more.

Lice and Human Evolution Icky and itchy, yes, but lice hold important clues to our evolution in their DNA. Watch now.

Your Favorite Smart Animal Hear experts "pitch" for dogs, cats, honeybees, hyenas, and other smart species, then vote for your favorite. Vote now.

Human Hibernation Medical researchers and emergency room doctors are testing therapies that cool down patients to save their lives. Watch the video.

A One-Way Trip to Mars? Initial shock aside, some space scientists argue this is the only way to go. Read the column. NASA