Exploring the Edge of the Universe: Brian Keating on Telescopes, CMB, and Scientific Discovery

Into the Impossible With Brian Keating

Brian Keating

Physics, Natural Sciences, Science

4.7 • 1.1K Ratings

🗓️ 1 August 2025

⏱️ ? minutes

🔗️ Recording | iTunes | RSS

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Summary

Please join my mailing list here 👉 https://briankeating.com/yt to win a meteorite 💥 In this captivating conversation, we dive deep into the cosmos with renowned cosmologist, podcaster, and UC San Diego professor Dr. Brian Keating. Joined by Mike Misha and Xinghui, Brian takes us on a journey from the childhood wonder inspired by the Moon to the high-altitude peaks of Chile and the frigid expanse of the South Pole, where he's helped pioneer the development of cutting-edge telescopes aimed at unlocking the secrets of the universe. This episode is from the 632nm Podcast - Takeaways: 00:00 Moon Fascination and Antarctic Astronomy 09:38 "Proof of Earth's Orbit via Parallax" 14:36 Uncharted Light Polarization Exploration 19:45 Challenges in Measuring Polarization 23:41 "Transistor Tech for Microwave Signals" 26:52 Optimal Telescope Size for Science 31:13 Collaborative Scientific Learning Journey 37:20 "Steady State vs. Big Bang" 46:43 Universe's Earliest Light Revealed 51:25 Rapid Advances in Observational Technology 58:01 Motel Suicide and Leadership Shift 58:50 Near-Miss: Nobel Prize Revelation 01:04:13 Missed Signals, Planck Pressure 01:13:54 Detecting Cosmic Phenomena with Telescopes 01:18:42 Balanced Research in Cosmology 01:23:27 Space Telescope Vision Expansion 01:26:51 AI's Limits in Predicting Relativity 01:31:28 Reevaluating the Nobel Prize Criteria 01:38:20 Musk's Mars Vision: Science Disruption 01:41:46 Balancing Science and Personal Life - Watch the episode on other platforms: YouTube: https://www.youtube.com/watch?v=5z3THHIQorc&list=PL87anKnyrxSINa7feABRBcXA_fIQzqPH0 Apple Podcasts: https://podcasts.apple.com/us/podcast/how-we-build-telescopes-to-explore-the-early-cosmos/id1751170269?i=1000719643327 Spotify: https://open.spotify.com/episode/60hbFQNpmBJvDsdHM5WgDW?si=e91b6fbc60a5411d Twitter: https://x.com/632nmPodcast/status/1950231216143126552 Substack: https://open.substack.com/pub/632nmpodcast/p/listening-to-the-echoes-of-the-big?r=409hsq&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true ------------------------------------------------------------------- Join this channel to get access to perks like monthly Office Hours: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join 📚 Get a copy of my books: Think Like a Nobel Prize Winner, with life changing interviews with 9 Nobel Prizewinners: https://a.co/d/03ezQFu My tell-all cosmic memoir Losing the Nobel Prize: http://amzn.to/2sa5UpA The first-ever audiobook from Galileo: Dialogue Concerning the Two Chief World Systems: Ptolemaic and Copernican https://a.co/d/iZPi9Un 📺 Watch my most popular videos:📺 Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: 🏄‍♂️ Twitter: https://twitter.com/DrBrianKeating 🔔 Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list; just click here http://briankeating.com/list ✍️ Detailed Blog posts here: https://briankeating.com/blog 🎙️ Listen on audio-only platforms: https://briankeating.com/podcast #universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground #intotheimpossible #briankeating Learn more about your ad choices. Visit megaphone.fm/adchoices

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0:45.1	Imagine you gave Einstein AI in 1914 before he came out with the theory of general relativity.
0:50.8	And you said, here's the data.
0:52.4	Here's the orbit of the planet Mercury. Can it predict
0:55.5	that you need to go from vectorized data into Riemannian curvature? It's such a leap of human
1:01.4	intuition. I almost know that it couldn't do it because we tried to do it. In this episode,
1:09.9	Mike, Misha, and Xinghui, visit Dr. Brian Keating, cosmologist, podcaster, and professor at UC San Diego.
1:17.0	They discussed the cutting-edge instruments he helped develop to measure the faint polarization
1:21.3	of the cosmic microwave background. Brian waxes poetically about taking inspiration from
1:27.0	Galileo and building telescopes in the
1:29.7	high peaks of Chile. He also walks the team through some of the techniques and assumptions that allow
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