Unless you’ve been under a bush for the past month, you can’t have missed what could be described the news of the Century – the first direct detection of gravitational waves. This month, I speak to Edward Gomez about what this discovery means, and catch up with some of the gravitational physicists here in Cardiff, Andrew Williamson, Frank Ohme and Lionel London. They tell me quite how sensitive the LIGO instruments are, and how gravitational waves are the voice of Einstein.

Originally broadcast on 25th February 2016 as part of Pythagoras’ Trousers on Radio Cardiff.