This video says about itself:
11 February 2016
Today, over 100 years after Einstein proposed his theory of general relativity, we are proud to announce that his final major prediction has been verified! Gravitational waves have officially been detected by LIGO! We are still getting details as the teams of physicists go over the data, but this is a huge deal, and is an exciting new step in understanding our universe.
See also here.
Despite a new measurement, the neutron’s lifetime is still puzzling, by Emily Conover, 5:50pm, May 9, 2018.