Nature Podcast6 Apr 2022

Five years in the coldest fridge in the known Universe

00:46 The very cool experiment looking for a proposed particle

Physics tells us that when matter is created, antimatter should be as well. But while the Universe is full of matter, there’s surprisingly little antimatter to be found. To try and understand this imbalance, a team have built a detector kept just above absolute zero which they are using to look for a hypothesised, ultra-rare type of particle decay that could create matter without antimatter.

Research article: The CUORE Collaboration

News and Views: Cryogenic mastery aids bid to spot matter creation

09:43 Research Highlights

Subsidence of coastal cities makes them more vulnerable to sea-level rise, and tackling ‘crazy ants’ with a parasitic fungus.

Research Highlight: Global cities are sinking — and humans are partly to blame

Research Highlight: Marauding crazy ants come to grief when a fungus comes to call

12:17 Solving the puzzle of the missing plasmids

Bacteria are well known for their ability to share genes, which they often do using small circles of DNA called plasmids. But while plasmids are common in bacteria, a long-standing mystery has been why they are absent in a group of cholera-causing strains of Vibrio cholerae. Now, a team might have solved this mystery, by discovering two previously unknown DNA defence systems that eliminate plasmids, hidden in the bacteria's genomes.

Research article: Jaskólska et al.

News and Views: Bacterial defence systems degrade plasmid invaders

18:41 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, what smelling jars from an Egyptian tomb has revealed about ancient burial practices, and the latest report from the IPCC.

Science: Ancient smells reveal secrets of Egyptian tomb

Nature: IPCC’s starkest message yet: extreme steps needed to avert climate disaster

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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