One of the joy of being a Caltech alum is subscribing to E&S, Caltech's quarterly compendium of interesting "stuff" happening there... and it is indeed amazing. The latest issue features "random walk", a bunch of short notes about life on campus, an article about the search for dark matter in the universe, the cover story about Cassini, as it explores the rings of Saturn, and a great story about the Netflix competition to build a better recommendation engine. Great stuff.
It is all available online, too, in a spiffy flash magazine-like format. Check it out!