The Speed Of Gravity

This week on 'Futureproof The Podcast' Jonathan McCrea asks "What is the speed of gravity?". To answer that question will be Ethan Siegel - Astrophysicist and Science Writer. Also joining the show to look at the main news stories from the science world is Dr Ruth Freeman from Science Foundation Ireland and Dr Shane Bergin from UCD. Listen and subscribe to Futureproof with Jonathan McCrea on Apple Podcasts and Spotify.    Download, listen and subscribe on the Newstalk App.     You can also listen to Newstalk live on newstalk.com or on Alexa, by adding the Newstalk skill and asking: 'Alexa, play Newstalk'.