Feature

Gene Differs in Early Birds and Night Owls

A Dozen New Planets… and Still Counting

Progestin Enhances an Anticancer Process

Ceramics Cling to Long Bacterial Strings

Calcium Gives Black Teens Heart Benefits

A Step Closer to an Atomic-Based Kilogram?

As Globe Warms, Atmosphere May Shrink

Chaucer’s Descendants

Stamping out Syphilis

Archaeology

Earth Science

Curbing Air Bags’ Dangerous Excesses