Democracy and Science: An Enduring Lineage
In the annual Barnard Environmental Lecture at AAAS, Francesa Grifo explored how the scientific values of free-thinking and transparency also lie at the heart of U.S. democracy.

Defective Protein Linked to Male Infertility
Researchers have pinpointed a genetic mutation that may help explain why some men are less fertile than normal, a new study in the journal Science Translational Medicine reports.

The Cutting Edge of Science Imagery
A new exhibit at AAAS features winners of the International Science and Engineering Visualization Challenge, an annual competition sponsored by NSF and Science.