Use BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.

Find out how to listen to other BBC stations

Episode details

Radio 4,10 Sep 2025,28 mins

New Elements

Available for over a year

What does it take to make something which has never existed on Earth before? The search for element 120 on the periodic table has begun at the Lawrence Berkeley National Laboratory in California. Cosmologist Andrew Pontzen, who is used to studying the processes of creation, visits the 88-Inch Cyclotron facility at Berkeley where the next new element may be created very soon. To uncover what motivates scientists to pursue something that is possibly only produced in the violent explosions of stars he speaks with the scientists trying it now, the scientists who last made an element at Berkeley 50 years ago, and a historian of the fraught history of element discovery. The answer is not as straight forward as he suspected. Presenter: Andrew Pontzen Producer: Ella Hubber Editor: Martin Smith Production Coordinator: Jana Holesworth Image Credit: Berkeley Lab Heavy Element Group

Programme Website