In the years leading up to the Large Hadron Collider turning on, the physics community was buzzing with curiosity and excitement about what they were about to discover. These moments were captured in the documentary Particle Fever, created by the particle physicist David Kaplan. On today's episode, he recounts these historic years from the perspective of both physicist and filmmaker.

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If we met aliens, could we communicate through physics? Daniel Whiteson explores this question on today's episode. For more, check out his new book, Do Aliens Speak Physics?

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In honor of Nobel prize season, we remember some people whose important work in the past has been overlooked by the Nobel committee.

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Our universe is expanding. But when physicists measure how fast this expansion rate is, they get two different answers. Hear what this crisis means from Nobel Prize winner Adam Riess.

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Adam Riess recounts the moments of his Nobel prize-winning discovery that our universe is expanding at an accelerating rate, powered by a mysterious energy source called dark energy. 

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We answer your questions. To listen to our backlog of ask-us-anything episodes for free, head to our Patreon, or join for $3/month to submit your questions: https://www.patreon.com/whythisuniverse

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What's it like bringing science to the most general public audiences? How do you distill complex results into short news-worthy articles without getting lost in clickbait? Today we hear the perspective of New York Times science journalist Katrina Miller.

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Quantum computing makes big promises, but how does it work? What is the real state of quantum computing today? Special guest Henry Lamm answers our questions.

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Is the world around us real, or are we living in someone's computer program?

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We hear two physicists describe their lives collecting data in remote locations, from deep underground in an active mine and from the South Pole.

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Learn how the geometry of space defies our intuition, and why it gave Einstein so much anxiety.

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Today we visit a turning point in the history of science: the discovery that the Earth is not at the center of the cosmos.

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Dan moderates a lively discussion on extraterrestrial life at the Chicago Humanities Festival.

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Where does the musical octave come from? What makes a C note a C? Why do different instruments sound different? Special guest Tim Cohen comes on to answer these questions and more.
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We tell the story of how the Universe developed large scale structure, starting from the Big Bang to today. It could have all turned out very differently, if not for some key players.

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Why This Universe hosts it's first ever live episode taping featuring guests Daniel Holz and Diana Powell. We discuss the possibility of intelligent life out in the Universe, the existential risks faced by humans on Earth, and the chance the intelligent life can persist in the Universe.

This conversation took place during the University of Chicago Podcast Network festival.

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CORRECTION: We misspeak about the time of the event in the episode, we are really on at 3-4 pm CST! Apologies!

Why This Universe is going live on October 3rd in Chicago, IL!

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While physicists overwhelmingly agree about the existence of dark matter, a select group of people aren't convinced. Instead, they believe we must be wrong about gravity, and claim we need a theory of modified gravity (MOND) instead. Recent press releases have claimed "smoking gun" evidence for this underdog theory, should we take them seriously?

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Today we are debunking the recent paper that claims our universe is much older than previously thought.

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For fun dinosaur facts and research, check out I Know Dino: The Big Dinosaur Podcast, on Apple or wherever you get your podcasts https://podcasts.apple.com/us/podcast/i-know-dino-the-big-dinosaur-podcast/id960976813?ign-mpt=uo%3D4&mt=2

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We are celebrating our 3 year anniversary with a throwback to one of our earliest episodes! Entanglement, wave-particle duality, and uncertainty - here's a breakdown of the weirdest and wildest things about quantum mechanics.

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Special guest Alan Lightman takes us through a fascinating discussion of consciousness, and tells us how he reconciles spirituality with his materialist views.
Todays episode is sponsored by the International Space Station. Join the ISS National Laboratory this August in Seattle at the 12th annual ISS Research and Development Conference. Visit ISSconference.org to register now.

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Shortly after the Big Bang, space was densely packed with enough stuff for sound to travel through it. What was producing sound in this era, and how can we hear it today?

Todays episode is sponsored by the International Space Station. Join the ISS National Laboratory this August in Seattle at the 12th annual ISS Research and Development Conference. Visit ISSconference.org to register now.

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Special guest Cari Cesarotti tells us why so many particle physicists are itching to build a whole new type of particle collider.

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The Big Bang is well accepted today as the leading theory of how our universe evolved over time - but in today's episode, we talk through all the very wrong theories that came before it.
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Can consciousness be explained by physics, or does it appeal to something beyond materialism? Philosopher guest star David Chalmers talks to us about how we can think about consciousness from a philosophical and scientific perspective.

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A whirlwind of questions brings us to an odd conclusion: could reality be an illusion created by a quantum fluctuation of a brain? This is a rebroadcast of a past favorite.

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Astronomers' newest telescope, JWST, just discovered galaxies that formed earlier than previously thought possible. What does this discovery mean for our understanding of the early universe?

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Before the LHC turned on in 2008, many feared that it would create a dangerous black hole that would destroy the world. Were any of those fears well-founded, and how seriously did scientists take these claims?

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Learn how extra dimensions of space might appear to us, and what physicists have done to try to find them.

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Special guest Katie Mack talks to us about how the universe might end.

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In today's different type of episode, we talk about the risks of a subtle kind of scientific misinformation.

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This episode will hurt your brain, or your money back.

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We interrupt our regular episodes to cover the exciting new discovery that the IceCube Neutrino Observatory announced on November 3rd, 2022.

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We pick up the story of string theory and explore the explosion of interest it experienced in the mid 1980s.

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