Episode 109: Big, Small and In-Between

Apply to join us as a co-host! https://astrosoundbites.com/recruiting-2025 This week, Lucia, Cole and Cormac discuss cosmic sandwich kids: intermediate mass black holes. Where are they hiding? How do they form? And can they grow up to become supermassive black holes? To answer questions like these, we take a look at globular cluster simulations and a famous gravitational wave event: GW190521. The discussion takes us to alien civilisations in the far, far future.  From Globs to Gravitational Waves: A Simulated Cosmic Choreography https://astrobites.org/2025/06/19/from-globs-to-gravitational-waves-a-simulated-cosmic-choreography/ Uncovering Precession for GW190521: How the Last Cycle Cracked the Case https://astrobites.org/2025/06/21/precession_gw190521/ Space Sound: https://soundcloud.com/esa/sound-of-a-juice-boom-deploying The clock ticking sound is by “opticalnoise” on freedsound.org (https://freesound.org/people/opticalnoise/sounds/201194/). The alarm sound is by “hypocore” on freesound.org (https://freesound.org/people/hypocore/sounds/164090/).