How We Build Telescopes to Explore the Early Cosmos | Brian Keating
632nm29 Jul 2025

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

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:

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Michael Dubrovsky: https://x.com/MikeDubrovsky

Misha Shalaginov: https://x.com/MYShalaginov

Xinghui Yin: https://x.com/XinghuiYin


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Website: https://www.632nm.com

Episoder(46)

How Neurons Translate Electricity into Chemistry | Tom Südhof

How Neurons Translate Electricity into Chemistry | Tom Südhof

How do neurons convert electrical signals into chemical messages in under a millisecond?In this episode, we speak with Thomas Südhof, Stanford neuroscientist and Nobel laureate whose discoveries revea...

10 Mar 1h 30min

How Engineers Solve “Impossible” Problems | Dan Gelbart

How Engineers Solve “Impossible” Problems | Dan Gelbart

How do engineers solve problems that seem to violate the laws of physics?In this episode, we speak with Dan Gelbart, a prolific inventor and precision engineer, about what it really means to work at t...

17 Feb 2h 3min

How Visual Experience Rewires the Brain | Mark Bear on Neuroplasticity

How Visual Experience Rewires the Brain | Mark Bear on Neuroplasticity

How does experience rewire the brain—and why is vision the ideal system for understanding neuroplasticity?In this episode, we speak with Mark Bear, MIT neuroscientist and a pioneer in the study of exp...

3 Feb 1h 55min

Snell's Law, Metasurfaces, and Metalenses  | Federico Capasso

Snell's Law, Metasurfaces, and Metalenses | Federico Capasso

How can flat surfaces shape light as powerfully as bulky lenses?In this episode, we speak with Federico Capasso, Harvard physicist and pioneer of metasurfaces, metalenses, and nanophotonics. Capasso t...

20 Jan 2h 13min

Graphene, Nanotubes, and Quantum Hall Physics | Philip Kim

Graphene, Nanotubes, and Quantum Hall Physics | Philip Kim

How do electrons behave when they’re confined to a single layer, and why do entirely new laws of physics emerge when dimensions shrink?Papers discussed in this episode:Experimental observation of the ...

6 Jan 2h 47min

Quantum Matter, Super-conductors, and Black Holes | Subir Sachdev on the SYK Model

Quantum Matter, Super-conductors, and Black Holes | Subir Sachdev on the SYK Model

What makes high-temperature superconductors and “strange metals” some of the most perplexing systems in modern physics?In this episode, we speak with Dr. Subir Sachdev: Harvard physicist and one of th...

23 Des 20252h 34min

How to Build Fault-Tolerant Quantum Computers | Austin Fowler on Surface Codes + TQEC

How to Build Fault-Tolerant Quantum Computers | Austin Fowler on Surface Codes + TQEC

Would we get a quantum computer sooner if everything was open source?In this episode, we speak with Austin Fowler, one of the architects of quantum error correction and a pioneer of the surface code u...

9 Des 20251h 50min

Why Syncing Atomic Clocks is Virtually Impossible | Judah Levine on UTC

Why Syncing Atomic Clocks is Virtually Impossible | Judah Levine on UTC

Why is syncing atomic clocks still one of the hardest problems in physics and engineering?In this episode, we speak with Judah Levine—legendary NIST physicist and one of the key architects of modern t...

26 Nov 20252h 4min

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