Universe Today Podcast

By: Fraser Cain
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  • Summary

  • Space news, interviews, Q&As, and exclusive content from Universe Today. Audio versions of Fraser Cain YouTube channel.
    © 2025 Fraser Cain
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Astronomy Natural History Physics
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Episodes
  • [NIAC 2025] Using Metamaterials to Build A Starshade in Space

    [NIAC 2025] Using Metamaterials to Build A Starshade in Space
    Feb 5 2025
    We all want to see potentially habitable exoplanets around Sun-like stars. But to do that you need a starshade. Something to cover the star and reveal the faint planets around it. What can we build these structures from to make them rigid and strong enough? Finding out in this interview. 🟣 Guest: Christine Gregg Dynamically Stable Large Space Structures via Architected Metamaterials https://www.nasa.gov/directorates/stmd/niac/dynamically-stable-large-space-structures-via-architected-metamaterials/ 🦄 Support us on Patreon: https://patreon.com/universetoday 00:00 Intro 02:05 Meta-materials 06:12 NIAC award 14:11 In-space assembly 27:04 More interviews 📺 VIDEO VERSION https://youtu.be/exiT7BsJhH0 📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)
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    28 mins
  • [Q&A] Shape of Craters, Max Size for a Telescope, Atmospheres of Black Holes

    [Q&A] Shape of Craters, Max Size for a Telescope, Atmospheres of Black Holes
    Feb 4 2025
    Why are most craters circular, no matter which angle the meteor falls? Is there a size limit for a telescope before diminishing returns take place? Can black holes have atmospheres? Answering all these questions and more in this Q&A show. 👉 Watch the extended Overtime Q&A: https://www.patreon.com/universetoday 00:00 Start 00:24 How big can a telescope get? 05:12 Does an optical telescope on the Moon make any sense? 08:13 Can black holes have atmospheres? 11:05 Why are craters circular not elliptical? 12:41 Will Starship refuel in orbit in 2025? 12:52 Is there evidence for primordial black holes? 📺 VIDEO VERSION https://youtu.be/MaKWptXAxC8 📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)
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    21 mins
  • [NIAC 2025] NASA Just Funded This Project. Assembling Large Structures in Space

    [NIAC 2025] NASA Just Funded This Project. Assembling Large Structures in Space
    Feb 3 2025
    Space Docks are everywhere in science fiction. It's the most logical way to build big constructions in space. So, NASA funded a futuristic project that studies the possibility of assembling structures in space. 🦄 Support us on Patreon: https://patreon.com/universetoday 🚀 NIAC 2024 playlist (https://www.youtube.com/playlist?list=PLbJ42wpShvmn__xOxSjc9zn8AEeaL831-) 🚀 NIAC 2023 playlist (https://www.youtube.com/playlist?list=PLbJ42wpShvmmM_Ft5DzAbrwzXHB8ED0rf) 🟣 Guest: Dr Vojtech Holub https://thinkorbital.com/ 🚀 NIAC award, Construction Assembly Destination: https://www.nasa.gov/directorates/stmd/niac/construction-assembly-destination/ 00:00 Intro 01:26 Welding in space experiment 08:03 The NIAC award 27:39 Current obsessions 30:01 Final thoughts and more interviews 📺 VIDEO VERSION https://youtu.be/3BHNz68krNM 📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)
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    31 mins

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Profile Image for Christopher Brown

Awesome podcast.

I have not found a better space science and news podcast. The news bites are great. The interviews even better. LISTEN TO IT

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Profile Image for Kimmie Jean

My favorite podcast!

Fraser is very knowledgeable and explains everything so well. I love all the guests he brings on as well. Everyone should listen to this!

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