The Vision Thing

As the National Science Foundation's new director of Computer and Information Science and Engineering, Dr. Ruzena Bacsjy—a Penn computer-science professor noted for her work on robotic perception—must get Congress to see its way to creating greater support for basic research in information technology.

Resetting the Circadian Clock

The 24-hour circadian clock embedded in our genes is fundamental to life on this planet, says leading sleep researcher Dr. David Dinges—who has spent the past two decades trying to understand how it works and come up with ways to beat it.

Science Meets Society

Technophobia runs rampant, but what may be scarier is a system in which scientific truth is determined in the media and the courts, says Dr. Kenneth Foster.

Where Human Life Happens

Genetic testing and other technologies that offer a "window on the womb" are allowing parents to know more about their prospective offspring than ever before. Is that good?