Cornell University

Bethe Lecture Series - Public Lecture, Department of Physics

Wednesday, April 26, 2017 at 7:30pm to 9:00pm

Rockefeller Hall, Schwartz Auditorium
Central Campus

Title:  Probing the Dark Universe

Abstract:  Over the last two decades, cosmologists have made a remarkable discovery about our universe: only 4% is made of ordinary matter like atoms and molecules.  The other 96% is dark, in forms unlike anything with which we are familiar.  About 25% is dark matter, which holds galaxies and larger-scale structures together, and may be a new elementary particle.  Another 70% is thought to be dark energy, an even more mysterious entity that appears to be driving the accelerated expansion of the universe.  This talk will introduce the Dark Universe, give an overview of what we have learned about it, and describe new experiments and observatories that aim to illuminate these enigmas. 

Event Type



Astronomy, Physics


Contact E-Mail

Contact Name

Sue Sullivan

Contact Phone



Professor Joshua Frieman

Speaker Affiliation

Fermilab and the University of Chicago

Registration Status


Open To


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