The Accelerating Universe - Robert P Kirshner

Carnegie Observatories 2015 Spring Lecture Series A Noise Within Theater, Pasadena, CA, May 11, 2015 Dr. Robert P. Kirshner, Clowes Professor of Science, Harvard University The expanding universe was discovered at Mount Wilson almost 100 years ago. But there is something new! In the past 20 years, astronomers have found that cosmic expansion is speeding up, driven by a mysterious ’dark energy’ whose nature we do not understand. Dr. Kirshner, one of today’s preeminent astrophysicists, is the recipient of ma
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