Craig Hogan's work has encompassed many areas of astrophysical cosmology: the origin of the elements, cosmic phase transitions and defects, magnetic fields, background radiation, cosmic reionization, gravitational lensing, cosmic structure and dark matter, global cosmological parameters, and gravitational waves. His research has been recognized by prizes including an Alexander von Humboldt Research Award, the Gruber Cosmology Prize, and the Breakthrough Prize, awarded to the High-z Supernova Search Team for the co-discovery of cosmic Dark Energy. Hogan's recent scientific papers can be found on the preprint arXiv;. His current work addresses physical consequences of fundamental, universal quantum uncertainty in the fabric of spacetime, due to a coherent quantum states of gravity. With colleagues at Fermilab, the University of Chicago, and other institutions, he helped develop an experiment, the Fermilab Holometer, to measure this effect. He is currently working on cosmological probes, based on new hidden symmetries of cosmic background radiation and galaxy correlations, as well as the value of the cosmological constant.