Have you ever wondered how geologists learn about rocks? How about the stories that teach us more about the Earth? Nick Richard, PhD candidate in the UNL department of Earth and Atmospheric Sciences, will discuss the oral history that explains various geologic features and the area's geology.

This month's event has been postponed due to rising COVID numbers. Thank you for your understanding.

Join us to explore the facts and myths of dinosaurs, natural disasters, and science with fun, hands-on activities for the whole family.

Dark energy is the leading candidate for the mechanism that is responsible for causing the cosmological expansion to accelerate. Dr. 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.