Why can’t we see black holes? Can we see black holes with a telescope? That’s what Tumble listener James wants to know. We explore the science of supermassive black holes and gravitational waves, with the help of astronomer Maura McLaughlin. Find out how the LIGO telescope is aiding in the search for supermassive black holes on an intergalactic collision course! ANNOUNCEMENT: Tumble en Español, the Spanish adaptation of Tumble, is back for Season 3! Listen here: https://www.sciencepodcastforkids.com/tumble-en-espanol Learn more about black holes and gravitational waves on the science podcast for kids blog on our website, sciencepodcastforkids.com Listen to Maura talk about the science of pulsar stars - the key to finding gravitational waves and black holes - in our bonus interview episode, available when you support us on Patreon for just $1 or more a month on Patreon.com/tumblepodcast.