More to the Universe Than Meets the Eye

The universe is full of invisible stuff — dark matter, for example, outnumbers visible matter by a ratio of five to one. Some theoretical physicists think dark matter may be lurking in extra dimensions. Cosmologist Michael Turner discusses the dark side of the universe, and how physicists are studying it.

Segment Guests

Michael Turner

Michael Turner is director and Rauner Distinguished Service Professor at the Kavli Institute for Cosmological Physics at The University of Chicago in Chicago, Illinois.