Instant Genius is a bite-sized masterclass in podcast form. And in this episode, we're exploring the multiverse.

The idea of the multiverse, a hypothetical group of coexisting multiple universes, has long been a staple of science fiction books and movies but the theory is actually grounded in bona fide science. It has been gathering momentum amongst cosmologists for several decades but what exactly does the theory say and what evidence is there to back it up?

In this episode, we’re joined by the Astronomer Royal and fellow of Trinity College Cambridge, Lord Martin Rees. He tells us about his thoughts on the possibility of the existence of multiple universes, what parallel universes might look like and how our universe evolved to produce the ideal conditions for life.

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Jason Goodyer
Jason GoodyerCommissioning editor, BBC Science Focus

Jason is the commissioning editor for BBC Science Focus. He holds an MSc in physics and was named Section Editor of the Year by the British Society of Magazine Editors in 2019. He has been reporting on science and technology for more than a decade. During this time, he's walked the tunnels of the Large Hadron Collider, watched Stephen Hawking deliver his Reith Lecture on Black Holes and reported on everything from simulation universes to dancing cockatoos. He looks after the magazine’s and website’s news sections and makes regular appearances on the Instant Genius Podcast.