Sean Michael Carroll (; born October 5, 1966) is a cosmologist and physics professor specializing in dark energy and general relativity. He is a research professor in the Department of Physics at the California Institute of Technology. He has been a contributor to the physics blog Cosmic Variance, and has published in scientific journals such as Nature as well as other publications, including The New York Times, Sky & Telescope, and New Scientist.
He has appeared on the History Channel’s The Universe, Science Channel’s Through the Wormhole with Morgan Freeman, Closer to Truth (broadcast on PBS), and Comedy Central’s The Colbert Report. Carroll is the author of Spacetime And Geometry, a graduate-level textbook in general relativity, and has also recorded lectures for The Great Courses on cosmology, the physics of time, and the Higgs boson. He is also the author of three popular books: one on the arrow of time entitled From Eternity to Here, one on the Higgs boson entitled The Particle at the End of the Universe, and one on science and philosophy entitled The Big Picture: On the Origins of Life, Meaning, and the Universe Itself.