Scientists have finally confirmed the existence of a CNO cycle fusion reaction in the Sun, and why women’s contraception research needs a reboot.

In this episode:

00:47 Detection of CNO neutrinos

Since the 1930s it has been theorised that stars have a specific fusion reaction known as the CNO cycle, but proof has been elusive. Now, a collaboration in Italy report detection of neutrinos that show that the CNO cycle exists.

Research article: The Borexino Collaboration

News and Views: Neutrino detection gets to the core of the Sun

08:48 Coronapod

We discuss the search for the animal origin of SARS-CoV-2, with researchers raiding their freezer draws to see if any animals carry similar viruses, and the latest vaccine results.

News: Coronaviruses closely related to the pandemic virus discovered in Japan and Cambodia

News: Why Oxford’s positive COVID vaccine results are puzzling scientists

19:32 Research Highlights

How sleep patterns relate to ageing, and a solar-powered steam sterilizer.

Research Highlight: For better health, don’t sleep your age

Research Highlight: Technology for sterilizing medical instruments goes solar

21:50 Getting women’s contraception research unstuck

Since the 1960s there has been little progress on research into women’s contraceptives. This week in Nature, researchers argue that this needs to change.

Comment: Reboot contraceptives research — it has been stuck for decades

29:35 Briefing Chat

We discuss a highlight from the Nature Briefing. This time, a tool to summarise papers.

Nature News: tl;dr: this AI sums up research papers in a sentence

Try the TLDR tool yourself!

Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.

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Neutrinos give insights into the workings of the Sun’s core

Nature Podcast