“The Hubble Constant Controversy” with Adam Riess (Johns Hopkins University, USA)

The Hubble constant remains one of the most important parameters in the cosmological model which can be used to probe the nature of dark energy, the properties of neutrinos and the scale of departures from flat geometry.  By steadily improving the precision and accuracy of the Hubble constant, we now see evidence for significant deviations from the standard model, referred to as LambdaCDM, and thus the exciting chance, if true, of discovering new fundamental physics. In this online seminar, Adam Riess will review recent and expected progress.

Adam Riess is a distinguished professor at the Johns Hopkins University and the Space Telescope Science Institute (STScI) in Baltimore. He won the Nobel Prize in Physics in 2011 (jointly with Brian Schmidt and Saul Perlmutter) for the discovery that the expansion of the universe is accelerating. Riess had studied at MIT and received his PhD from Harvard University in 1996. He then moved to UC Berkeley as a Miller Fellow, afterwards he joined tSTScI. In 2006, he became a full professor at Johns Hopkins University. In 2016 he was awarded a Bloomberg Distinguished Professor there. Since 1998, Adam Riess had led the High-z Supernova Search Project jointly with Brian Schmidt. Through discovering and monitoring supernovae of Type Ia, they provided evidence that the universe’s expansion rate is accelerating. Adam Riess has received numerous prizes and awards for his research,  e.g.  the Astronomical Society of the Pacific’s Robert J. Trumpler Award in 1999, the American Astronomical Society’s Helen B. Warner Prize in 2003, the Raymond and Beverly Sackler Prize in 2004, the Shaw Prize in Astronomy in 2006 (jointly with Saul Perlmutter and Brian Schmidt), and the Gruber Cosmology Prize in 2007 (with the High-Z Team).

This webinar was recorded on May 20, 2021