The Undiscovery of Cosmic Deceleration | Robert P. Kirshner

Thursday, May 16, 2019

The Undiscovery of Cosmic Deceleration | Robert P. Kirshner || Radcliffe Institute

Robert P. Kirshner, the Clowes Research Professor of Science in the Harvard Faculty of Arts and Sciences, set out to find the deceleration of the expansion of the universe, only to find something else: amazingly, the measurements showed the expansion of the universe to be speeding up. The astonishing (un)discovery of cosmic acceleration has now been confirmed from many directions—and attributed to a “dark energy” that dominates the universe, whose nature is a deep mystery at the heart of physics.