In 1998 two teams traced back the expansion of the universe over billions of years and discovered that it was accelerating, a startling discovery that indicated more than 70% of the cosmos was in the form of dark energy. 2011 Nobel Laureate for Physics Brian Schmidt, leader of the High-Redshift Supernova Search Team, will describe this discovery and explain how astronomers have used observations to trace our universe's history back more than 13 billion years, leading them to ponder the ultimate fate of the cosmos.

Speaker: Dr. Brian Schmidt
2011 Nobel Laureate for Physics
The Australian National University,
The Research School of Astronomy and Astrophysics,
Mount Stromlo Observatory

Co-hosted by the Carnegie Institution for Science with The Australian National University, and the Australian Department of Industry, Innovation, Science, Research and Tertiary Education

February 29, 2012