# How We Build Telescopes to Explore the Early Cosmos | Brian Keating

An episode of [632nm](https://invisiblenetwork.ai/podcast/1751170269), 29 Jul 2025, 1 h 44 min.

Audio: https://media.transistor.fm/b5683de6/c15fa816.mp3

Did the Big Bang really happen? Telescopes, dark matter & cosmic origins explored. Join cosmologist Brian Keating as we explore the mysteries of the universe, from building telescopes at the South Pole to measuring the polarization of the cosmic microwave background and chasing signs of gravitational waves. We discuss Galileo’s influence, cosmic inflation, and how the Nobel Prize could be changed to better reflect the way we do science. Follow us for more technical interviews with the world’s greatest scientists: Twitter: https://x.com/632nmPodcast Instagram: https://www.instagram.com/632nmpodcast?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw== LinkedIn: https://www.linkedin.com/company/632nm/about/ Substack: https://632nmpodcast.substack.com/ Michael Dubrovsky: https://x.com/MikeDubrovsky Misha Shalaginov: https://x.com/MYShalaginov Xinghui Yin: https://x.com/XinghuiYin Subscribe: Apple Podcasts: https://podcasts.apple.com/us/podcast/632nm/id1751170269 Spotify: https://open.spotify.com/show/4aVH9vT5qp5UUUvQ6Uf6OR Website: https://www.632nm.com

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