Table of Contents

Random Walk

Roving on Mars
by Marcus Y. Woo
Having spent almost six years on the red planet, the Mars rovers are proving to be one of the most successful missions of all time, revealing a wet and complex world.

Put Some Sunlight in Your Tank
by Douglas L. Smith
Green plants make fuel from sunlight and carbon dioxide-can we make gasoline the same way?

On the (Molecular) Origin of Species
by Douglas L. Smith
How does a species get the ball rolling when it's time to evolve? The change has to begin somewhere, and studying a tiny worm may show us the source.

The Neural Basis for Self-Control
by Antonio Rangel
You're on a diet, but you really want a piece of that chocolate cake. What's going on in your brain as you struggle to resist temptation?


Obituaries: Hans W. Liepmann

Faculty File