News

Planetary Science

Images suggest icy eruptions on Ganymede

New stereo images of Ganymede, the solar system's largest satellite, suggest that eruptions of water or slushy ice a billion or more years ago gave parts of the moon a facelift, creating long, flat bands of nearly pure water-ice.

Health & Medicine

Vaccine may prevent some cervical cancers

A new vaccine spurs people to produce a strong immune response against human papillomavirus, a virus that can infect both men and women and causes cervical cancer in women.

Ecosystems

Fish Epidemic Traces to Novel Germ

A new mycobacterium, related to the one causing tuberculosis, is responsible for a mysterious epidemic sickening some of the Chesapeake Bay's most prized fish.