Podcast: No Sign of Primordial Black Holes

Today on the podcast I talk with Kim Griest, a professor of physics at UC San Diego and professional dark matter hunter. Griest is exploring the possibility that the mysterious gravitational force acting on all the matter in our universe is caused by black holes that formed in the very early universe. Griest and two of his colleagues recently published the results of a search for these primordial black holes using data from the Kepler space telescope (which was designed to hunt for planets orbit...