In this episode:<h2>00:47 An RNA-based viral system that mimics bacterial immune defences</h2>To protect themselves against viral infection, bacteria often use CRISPR-Cas systems to identify and destroy an invading virus’s genetic material. But viruses aren’t helpless and can deploy countermeasures, known as anti-CRISPRs, to neutralise host defences. This week, a team describe a new kind of anti-CRISPR system, based on RNA, which protects viruses by mimicking part of the CRISPR-Cas system. The researchers hope that this discovery could have future biotechnology applications, including making CRISPR-Cas genome editing more precise.Research article: <a href="https://www.nature.com/articles/s41586-023-06612-5?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">Camara-Wilpert et al.</a><h2>09:05 Research Highlights</h2>Carved inscriptions suggest a queen named Thyra was the most powerful person in Viking-age Denmark, and the discovery of a puffed-up exoplanet that has just 1.5% the density of Earth.Research Highlight: <a href="https://www.nature.com/articles/d41586-023-03107-1?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">Runes on Viking stones speak to an ancient queen’s power</a>Research Highlight: <a href="https://www.nature.com/articles/d41586-023-03222-z?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">‘Super-puff’ planet is one of the fluffiest worlds ever found</a><h2>11:38 Modelling the future of Greenland’s ice sheet melt</h2>Climate-change induced melting of Greenland’s vast ice sheet would contribute to 7m of sea level rise. But it has been difficult to calculate how the ice sheet will respond to future warming. This week, a team suggest that abrupt ice loss is likely if the global mean temperature is between 1.7 °C and 2.3 °C above pre-industrial levels. Keeping temperature rise below 1.5 °C could mitigate ice loss, if done within a few centuries, but even a short overshoot of the estimated threshold could lead to several metres of sea-level rise.Research article: <a href="https://www.nature.com/articles/s41586-023-06503-9?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">Bochow et al.</a><h2></h2><h2>17:50 Briefing Chat</h2>A massive reproducibility exercise reveals over 200 ecologists get wildly-diverging results from the same data, and how melting simulated lunar-dust with lasers could help pave the Moon.Nature News: <a href="https://www.nature.com/articles/d41586-023-03177-1?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">Reproducibility trial: 246 biologists get different results from same data sets</a>Nature News: <a href="https://www.nature.com/articles/d41586-023-03207-y?utm_source=naturepod&utm_medium=podcast&utm_campaign=shownotes" rel="noopener noreferrer" target="_blank">How to build Moon roads using focused beams of sunlight</a><a href="https://briefer.public.springernature.app/nature_briefing?brieferEntryPoint=nb_nature_briefing" rel="noopener noreferrer" target="_blank">Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.</a><hr> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.

Podurama

Home

Trending

Personal

Your Podcasts

New Episodes

My Files

Favourite Episodes

Tags (Folders)

Recently Played

Bookmarks

Followed Playlists

An anti-CRISPR system that helps save viruses from destruction

Nature Podcast

AI Chapters

AI Insights

Reviews