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?Did you know this episode was inspired by a Patreon question? For access to ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverseSupport the show

Today we are debunking the recent paper that claims our universe is much older than previously thought.For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverseFor 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=2Support the show

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.To support our show and access exclusive ask-us-anything segments and more, join us on Patreon at https://www.patreon.com/whythisuniverse.Support the show

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.Support the show

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.Support the show