Helium

“I shall largely speak of mice,” the paper begins “but my thoughts are on man.”So begins a truly extraordinary scientific paper, and an equally extraordinary story.“Death Squared: The Explosive Growth and Demise of a Mouse Population.” was published in 1973 by John Calhoun, and i ...  Show more

In July 2024 a startling scientific paper was published.Headlined ‘Evidence of dark oxygen production at the abyssal seafloor’, scientists told how they had discovered oxygen being made two and a half miles down, at the bottom of the Pacific Ocean.Their claim centred on small pol ...  Show more

Encore episode. Helium is the second-most common element in the cosmos, but it's far rarer on planet Earth. As part of our celebration of the periodic table's 150th birthday, correspondent Geoff Brumfiel shares a brief history of helium's ascent, to become a crucial part of rocke ...  Show more

After North Korean balloons delivered trash to South Korea, we explore balloons of all kinds, why they can be useful, and when they’re not.Scientists have been using balloons for a long time, from pig bladders dropped from great heights, to Michael Faraday inventing the rubber ba ...  Show more

Qu’est-ce que l’hélium 3 ? Merci d’avoir posé la question ! L’hélium 3 est un gaz un peu spécial : il peut produire de gigantesques quantités d’énergie. Problème : on en trouve très peu sur Terre. C’est pourquoi certains Etats et entreprises sont prêts à aller le chercher… sur la ...  Show more

The process that powers our sun was still a mystery about 100 years ago. Bit by bit, scientists have worked out that the fusion of hydrogen at a star’s core can generate enough power to keep it shining for billions of years. Now, armed with this knowledge, researchers around t ...