{"podcast":{"title":"PBS Space Time","slug":"pbs-space-time-7778773","podcast_index_feed_id":7778773,"rss_url":"https://feeds.megaphone.fm/VG4094887262","website_url":null,"image_url":"https://megaphone.imgix.net/podcasts/f982ec76-1991-11f1-8531-1763dcadb313/image/9a88c1c5ae91e65f64e0c1324090ebb9.png?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress","author":"PBS","episode_count":188,"summary":"Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth with our astrophysicist host: Matthew O’Dowd. For all business inquiries and sponsorship opportunities please reach out to: pbsspacetime@lighthouseagents.com Matt O'Dowd spends his time studying the universe, especially really far-away things like quasars, super-massive black holes, and evolving galaxies. He uses telescopes in space to do it. Matt completed his Ph.D. at NASA's Space Telescope Science Institute, followed by work at the University of Melbourne and Columbia University. He's now a professor at the City University of New York's Lehman College and an Associate at the American Museum of Natural History's Hayden Planetarium. Previous host Gabe Perez-Giz is an astrophysicist who studies black hole physics. He received his Ph.D. from Columbia University and also hosted PBS Infinite Series. patreon.com/pbsspacetime","last_synced_at":"2026-07-24T02:17:15.545680+00:00","page_url":"https://stenobird.com/podcast/pbs-space-time-7778773"},"episode":{"title":"Gravitational Wave Background Discovered?","slug":"gravitational-wave-background-discovered","published_at":"2026-07-22T05:30:00+00:00","page_url":"https://stenobird.com/podcast/pbs-space-time-7778773/gravitational-wave-background-discovered","show_page_url":"https://stenobird.com/podcast/pbs-space-time-7778773","url":"https://traffic.megaphone.fm/VG2704714541.mp3","audio_url":"https://traffic.megaphone.fm/VG2704714541.mp3","summary":"PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Check Out Overview on PBS Terra: https://youtu.be/Pgj95EntvW0 Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime It was pretty impressive when LIGO detected gravitational waves from colliding black holes. Well we’ve just taken that to the next level with a galaxy-spanning gravitational wave detector that may have detected a foundational element of space itself - the gravitational wave background. Walk the Arecibo Catwalk With Matt: https://www.youtube.com/watch?v=-5j98wi_M2w&ab_channel=PBSSpaceTime Learn More About Gravitational Waves https://youtu.be/gw-i_VKd6Wo #space​​ #gravitationalwaves #discovery Check out the Space Time Merch Store https://pbsspacetime.com Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal & Stephanie Faria GFX Visualizations: Katherine Kornei Directed by Andrew Kornhaber Assistant Producer: Setare Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Sound of Pulsars https://www.parkes.atnf.csiro.au/people/sar049/eternal_life/supernova/pulsars.html End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Special Thanks to Our Patreon Supporters Big Bang Rick DeWitt Sandy Wu Matthew Miller Sean Maddox Brodie Rao Scott Gray Ahmad Jodeh Radu Negulescu Alexander Tamas Morgan Hough Juan Benet Fabrice Eap Mark Rosenthal David Nicklas Quasar Hank S Christina Oegren Mark Heising Vinnie Falco Hypernova william bryan Leo Emerson…","meta_description":"PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Check Out Overview o…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1510,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/pbs-space-time-7778773/episodes/gravitational-wave-background-discovered/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/pbs-space-time-7778773/gravitational-wave-background-discovered.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}