Gravitational waves. Credit: W.Benger / Zib/ MPG Institute for Gravitational Physics (DE). richardmitnick February 18, 2016December 29, 2023 sciencespringsEmailMoreTwitterLike Loading... Published by richardmitnick 68 years old, financial administrator, hiker, cyclist, PubRadio enthusiast View all posts by richardmitnick Published February 18, 2016December 29, 2023