{"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":"Do We Need an UPDATED Dark Matter Model?","slug":"do-we-need-a-revised-dark-matter-model","published_at":"2026-06-24T00:30:00+00:00","page_url":"https://stenobird.com/podcast/pbs-space-time-7778773/do-we-need-a-revised-dark-matter-model","show_page_url":"https://stenobird.com/podcast/pbs-space-time-7778773","url":"https://traffic.megaphone.fm/VG8962806764.mp3?updated=1778672244","audio_url":"https://traffic.megaphone.fm/VG8962806764.mp3?updated=1778672244","summary":"PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime We have no idea what dark matter is, other than it’s some source of gravity that is completely invisible but exerts way more pull that all of the regular matter. More than all of the stars, all of the gas, all of the black holes…unless dark matter is black holes, then black holes are most of everything. Dark matter constitutes 80% or so of the mass in the universe, which means even our Milky Way galaxy is mostly a vast ball of dark matter that happens to have attracted a relative sprinkling of baryons—atoms in the form of gas, which lit up as starry glitter spinning in the middle of this invisible gravitational well. Check out the Space Time Merch Store https://www.pbsspacetime.com/shop Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Search the Entire Space Time Library Here: https://search.pbsspacetime.com/ Hosted by Matt O'Dowd Written by Taha Dawoodbhoy & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Adriano Leal & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executive in Charge for PBS: Maribel Lopez Director of Programming for PBS: Gabrielle Ewing Assistant Director of Programming for PBS: John Campbell Spacetime is produced by Kornhaber Brown for PBS Digital Studios. This program is produced by Kornhaber Brown, which is solely responsible for its content. © 2023 PBS. All rights reserved. End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroide…","meta_description":"PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Sign Up on Patreon to get access to the…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1219,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/pbs-space-time-7778773/episodes/do-we-need-a-revised-dark-matter-model/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/do-we-need-a-revised-dark-matter-model.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}