Sep 5, 2026
Science writer and former astrophysicist Marcus Chown
joins us to discuss the elusive graviton - the theoretical particle
behind gravity.
In this chat we dig into the four fundamental forces of
nature, why gravity is so uniquely hard to pin down, and why
detecting a graviton would require a detector larger than Jupiter.
Marcus also unpacks string theory, the only framework that manages
to fold gravity in with the other forces, and why it's fallen out
of favour with much of the physics community.
www.marcuschown.com/