When different groups of astronomers measure the expansion rate of space, they get different answers. Who's right? Or are they both right, and new physics is afoot? Support the show
Dec 22
97 - The Schrödinger Equation: The Heart of Quantum Mechanics
Quantum mechanics is full of surprises. But somehow, the theory is captured almost entirely in a single equation. Today we explore the Schrödinger equation: how it works, what it says about nature, and why it revolutionized physics.For ad-free episodes and exclusive ask-us-anythi ... Show More
29m 52s
Mar 2017
What is the Nature of Dark Energy?
With the help of Robin Ince, Professor Brian Cox tackles more audience questions. He talks about the biggest question in physics, the nature of dark energy, running about with poles light years in length, climate change and winding up flat earthers. This week's questions come fro ... Show More
27m 59s
Mar 2025
What a dark energy discovery means for the fate of the universe
Dark energy, the mysterious force powering the expansion of the universe, appears to be weakening over time, according to a major cosmological survey that has thrown the laws of modern physics into doubt. Ian Sample tells Madeleine Finlay how this new finding could shed light on ... Show More
16m 8s
Feb 2024
Dark matter vs modified gravity: which team are you on?
Coke or Pepsi? Messi or Ronaldo? Taylor Swift or…well, without wanting to set the Swifties against Physics World, let’s just say there’s often a tribal element to who we support or the choices we make. In the world of cosmology, one heated divide is whether you’re for dark matter ... Show More
1h 2m