Great science stems from curiosity and hard work. In this case, it all began with a broken freezer. Atsuko Kobayashi (MS '91) and Caltech professor Joseph Kirschvink (BS, MS '75)—a husband-and-wife team of researchers who divide their time between Japan and the U.S.—returned to their home to discover that their freezer had died at some point during their absence. While shopping for a new one, Koba