“Bob,” the Chevy Tahoe four-wheel drive that was Caltech’s entry in Saturday’s highly anticipated DARPA autonomous vehicle race, is pictured at last week’s qualifying trials with Engineering and Applied Science division administrator Elliott Andrews (who, incidentally, retired on race day). Among the 15 entries, the farthest distance covered was seven miles; Bob navigated itself for a mile of the rugged 142-mile desert course before becoming disabled. Professor Richard Murray will discuss the results of the contest in a Watson Lecture on Wednesday, March 31.