The Great Black Hole Escape

What are gravitational waves good for? Getting rid of that pesky supermassive black hole that's outstayed its welcome, for one thing. Join the astroquarks, Josh Colwell, Addie Dove and Jim Cooney, for a journey from a comet with landslides to a distant galaxy that is losing its central black hole. All that, nerd news, and more on this episode of Walkabout the Galaxy.