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Physics Colloquium, January 4, 2005SEEING DARK ENERGYLarry GladneyUniversity of PennsylvaniaOur current cosmological model is compelling and simple, but puzzling in that two-thirds of the universe seems to be composed of a new form of energy, termed dark energy, which reveals itself only through the accelerated expansion it causes. Although several promising methods exist for exploring the source of this acceleration, the best probe is likely to be through observation of Type Ia supernovae. Due to the fundamental importance of understanding dark energy, defining the optimal mission for determining its nature may be among the most important astro/particle physics tasks of the next two decades. 3.30 p.m., Smith Laboratory, Room 1005Refreshments served in Smith 1094 at 3:00 p.m. |
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