Table of Contents

Random Walk

Galaxy Evolution: The View from the Ultraviolet
by D. Christopher Martin
In the ultraviolet, some galaxies teem with hot, young stars. A Caltech spacecraft called GALEX is finally giving them their close-up.

Biology and "The Bomb"
by Jennifer Caron
Caltech geneticist Ed Lewis played a pivotal, if little-known, role in the national debate on nuclear testing in the 1950s.

The Quest for Consciousness
by Christof Koch
In this chapter from his book, a Caltech neurobiologist talks about computer consciousness, zombies, and other things.


Obituaries: Arnold O. Beckman; William Dreyer; Robert P. Sharp; Edward E. Simmons, Jr.

Faculty File