Exploding Stars, Dark Energy, and the Runaway Universe

Some of the brightest and most fascinating objects in the Universe are exploding stars known as supernovae. These colossal outbursts result from the deaths of stars and for a time can outshine the entire galaxy in which they are found. Observations of very distant supernovae provided the first evidence that our Universe is accelerating in its expansion, likely due to a repulsive and mysterious "dark energy." It was these observations that were recently awarded the 2011 Nobel Prize in Physics.

Speaker: Dr. Jeff Silverman, UC Berkeley

Room 100