August 28: Explaining and Measuring the Expanding Universe

Science for the Public: Contemporary Science Issues and Innovations
August 28, zoom recording by Belmont Media Center, Belmont MA

Paul Martini, Ph.D., Professor of Astronomy, Ohio State University; and 2020-2021 William Bentinck-Smith Fellow, Radcliffe Institute for Advanced Research.

The universe is expanding, and very rapidly. Dr. Martini discusses the relationship between dark energy and the acceleration, and also the sophisticated instruments that measure the expansion. He is the Instrument Scientist for the Dark Energy Spectroscopic Instrument (DESI). The DESI will produce a five-year survey of over 35 million galaxies and quasars to better understand the nature of cosmic acceleration. Dr. Martini will also explain his extensive work on the evolution of galaxies and active galactic nuclei (AGN)