No mystery is bigger than dark energy - the elusive force that makes up three-quarters of the Universe and is causing it to expand at an accelerating rate. Join a panel of Lawrence Berkeley National Laboratory scientists who use phenomena such as exploding stars and gravitational lenses to explore the dark cosmos.
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Lawrence Krauss is a professor in the Department of Physics at Arizona State University. His lecture entitled Life, the Universe and Nothing was recorded at the Isabel Bader Theatre in Toronto on March 27th, 2009.