Science Cafe is a casual, educational, and entertaining series presented by Morrill Hall in partnership with scientists and industry experts.
On the first Thursday of each month attendees can hear from scientists, ask questions, offer opinions, and discuss a variety of topics during this informal event hosted at Happy Raven Bar in Lincoln, NE.
Dark energy is the leading candidate for the mechanism that is responsible for causing cosmological expansion to accelerate. Bharat Ratra will describe the astronomical data which persuade cosmologists that (as yet undetected) dark energy and dark matter are by far the main components of the energy budget of the universe at the present time. He will review how these observations have led to the development of a quantitative "standard" model of cosmology that describes the evolution of the universe from an early epoch of inflation to the complex hierarchy of structure seen today. He will also discuss the basic physics, and the history of ideas, on which this model is based.