This week, two conversations from the archives about parts of the world that are imperceptible to us, verging on almost unthinkable. We start with a moment of uncertainty in physics. Inspired by an essay written by physicist and novelist Alan Lightman, called The Accidental Universe (https://zpr.io/4965dUdNqtpQ), taken from a book of the same name. Former Ra ... Show More
May 2017
100. Neil deGrasse Tyson (Astrophysicist) – The Only "-ist" I Am
Since 2008, Big Think has been sharing big ideas from creative and curious minds. Since 2015, the Think Again podcast has been taking us out of our comfort zone, surprising our guests and Jason Gots, your host, with unexpected conversation starters from Big Think’s interview arch ... Show More
47m 31s
Oct 2025
Chris Hadfield’s Fictional Universe Is Rooted in Real Space History
What happens when a real-life astronaut turns to fiction? In this episode, Chris Hadfield shares how decades of spaceflight and global diplomacy inspired his latest novel, Final Orbit, a cold war thriller packed with historical intrigue and technical precision. Host Rachel Feltma ... Show More
10m 52s
Oct 2025
Neuroscience of reality; Quest for dark matter; Folklore of geoscience (New Scientist Live Special)
Episode 327 A special episode recorded on October 18 at New Scientist Live in London, featuring experts in geoscience, dark matter and neuroscience. Anjana Khatwa is an Earth scientist and TV presenter. In her new book, The Whispers of Rock, she brings together Western scientific ... Show More
28m 29s
Oct 2023
Episode 123, 'The Building Blocks of Reality' with Donnchadh O'Conaill (Part I - Substance)
<p class="">What is the underlying nature of reality? For Thales, the essence of the world was water; for the Stoics, it was Logos; for Heraclitus, the universe consisted, fundamentally, of fire, life-energy, or the 'thinking faculty'. The search for the building blocks of our wo ... Show More
41m 39s
Sep 2025
The Dead Composer Whose ‘Brain’ Still Makes Music
In a hauntingly innovative exhibit, brain cells grown from the late composer Alvin Lucier’s blood generate sound. Set in a museum in Perth, Australia, the installation blurs the line between art and neuroscience. Host Rachel Feltman and associate editor Allison Parshall explore t ... Show More
25m 25s
Sep 2025
The Dead Composer Whose ‘Brain’ Still Makes Music
In a hauntingly innovative exhibit, brain cells grown from the late composer Alvin Lucier’s blood generate sound. Set in a museum in Perth, Australia, the installation blurs the line between art and neuroscience. Host Rachel Feltman and associate editor Allison Parshall explore t ... Show More
25m 25s
Sep 2025
A landscape of consciousness | Robert Lawrence Kuhn and Hilary Lawson
<p>Will we ever reach a conclusive, agreed-upon theory of consciousness?</p><p>Over the millennia of recorded history, countless stories, theories, and arguments have emerged to explain the origins of consciousness. And yet, here we are in 2025 - post-Plato, post-Descartes, post- ... Show More
41m 19s
Aug 2025
Nick Spencer, "The Landscapes of Science and Religion: What Are We Disagreeing About?" (Oxford UP, 2025)
The relationship between science and religion has long been a heated debate and is becoming an ever more popular topic. The scientific capacity to manipulate and change humans and their environment through genetic engineering, life extension, and AI is going to take a huge leap f ... Show More
38m 48s