

Why This Universe?
Dan Hooper, Shalma Wegsman
The biggest ideas in physics, broken down. Join theoretical physicist Dan Hooper and co-host Shalma Wegsman as they answer your questions about dark matter, black holes, quantum mechanics, and more. Part of The University of Chicago Podcast Network.
Episodes
Mentioned books

Jun 27, 2022 • 25min
49 - When the Universe Changed in an Instant
Just like water changing to ice when it freezes, there were times in the universe's early history when reality changed in almost an instant. Today we dive into these cosmological phase transitions, and speculate about the strange objects these types of instant changes can create.For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

May 23, 2022 • 25min
48 - A Wrong Picture Of Cosmology
When cosmology was still an infant science, a daring physicist wrote a theory of the beginning of time. We revisit this theory and see what value we can still glean from it today.Support the show

May 9, 2022 • 34min
13 - Does Quantum Mechanics Imply a Multiverse? (Rebroadcast)
Today we explore different interpretations of quantum mechanics, from Copenhagen to the many-worlds hypothesis, in an attempt to uncover what quantum reality really is. This episode is a rebroadcast of one of our early favorites.For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Apr 25, 2022 • 29min
47 - Boltzmann Brains: Could Reality Be An Illusion?
A whirlwind of questions brings us to an odd conclusion: could reality be an illusion created by a quantum fluctuation of a brain?For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Apr 4, 2022 • 25min
46 - The Cosmic Rays Raining Down On Us
Here on Earth, we are constantly being showered by particles from outer space called cosmic rays. What do we know about where these particles really come from?For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Mar 14, 2022 • 29min
25 - Do Extra Dimensions Exist? (Rebroadcast)
Today we are rebroadcasting an earlier episode all about extra dimensions - How many dimensions of space are there? Could there be extra dimensions that are hidden from view?For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Feb 28, 2022 • 39min
45 - The Wide World of Exoplanets (ft. Diana Powell)
Special guest Dr. Diana Powell gives us the lay down on the field of exoplanet research, and on how these recent discoveries may shed light on the question of extraterrestrial life.For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Feb 14, 2022 • 24min
44 - Our Deepest Theory: Quantum Field Theory
Today we attempt to break down the basics of quantum field theory - our deepest theory of physics yet.For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Jan 31, 2022 • 29min
43 - Is Physics the Most Fundamental Subject?
Some people like to claim that psychology is just applied biology, which is just applied chemistry, which is just applied physics, and so on. Is there any truth to this? Or is it just our egos getting the better of us?For ad-free episodes and other exclusives, join us for $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Jan 17, 2022 • 37min
42 - The Signal That Could Be the Dark Matter
Dan shares one of the biggest stories of his career - his discovery of an excess of gamma rays at the center of the Milky Way. Is this a sign of dark matter, or is it something less mysterious?Support the show