Cutting Through the Smoke

Caryn Lerman and her colleagues at the Transdisciplinary Tobacco Use Research Center are hot on the trail of biological, psychological, and social means to counter tobacco’s addictive power.

Lawsuit by Prison Inmates Dismissed

University states: “It is now understood and agreed throughout the global scientific community that prisoners … cannot be considered appropriate candidates for any biomedical studies.”

James Thomson and the Holy Grail

In 1998, graduate alumnus Dr. James Thomson won the race to isolate and culture human stem-cells for a sustained period—one of the holy grails of medical science—but he can’t outrun the controversy generated by his work. Increasingly, he isn’t trying.

The Particle Sleuths

Penn researchers have a long history of tracking solar neutrinos, elusive particles which may tell us much about our sun and the nature of matter itself.

Dinosaurs Lost and Found

A Penn graduate student's quest to rediscover the "lost dinosaurs of Egypt" was a story made for television—a two-hour documentary will air this winter—and led to a spectacular new find as well.