---------- Forwarded message --------- From: Nature Briefing Date: Tue, Aug 13, 2024 at 2:43 AM Subject: Your microwave oven probably has its own microbiome To: What matters in science | View this email in your browser https://us17.campaign-archive.com/?e=6a1780ef1b&u=2c6057c528fdc6f73fa196d9d&id=b911ca828a Monday 12 August 2024 [image: Nature Briefing] https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=9832c91d2b&e=6a1780ef1b Hello *Nature *readers, Today we boggle at samples from Earth’s mantle — just when an international exploration effort is coming to an end. Plus, we consider the debate raging in the field of high-pressure superconductors and explore the microbiome in our microwave ovens. [image: Petrographic micrograph of a mantle rock core sample] https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=2be7e87c11&e=6a1780ef1b Mantle rock was found to be interspersed with other types of rock in sample cores, suggesting that the mantle–crust boundary is not as sharp as seismographic data normally suggest. (Johan Lissenberg) Deepest-ever samples from Earth’s mantle https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=e23867b66c&e=6a1780ef1b Researchers extracted an almost uninterrupted 1,268-metre long sample of rock https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=cf3d412c71&e=6a1780ef1b from a region where Earth’s mantle — the thick, interior layer that makes up more than 80% of the planet’s bulk — has pushed up through the Earth’s crust. The oceanic crust is an ideal place to puncture, because it’s much thinner and younger in places than the crust on dry land, thanks to the movements of tectonic plates. But a follow-up study might be a long time coming: the United States is retiring *JOIDES Resolution*, the workhorse research ship that scientists used to do the work. Nature | 5 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=dc25e58878&e=6a1780ef1b Reference: *Science * https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=32ee53bd9c&e=6a1780ef1b paper https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=c5659448dd&e=6a1780ef1b Superconductivity still reels from scandal https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=29d6f81dd3&e=6a1780ef1b The high-pressure superconductor field is still recovering from a scandal https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=398fcf765b&e=6a1780ef1b in which physicist Ranga Dias claimed to have discovered room-temperature superconductors, but then was found by his employer to have committed extensive scientific misconduct. Now there are fresh concerns, this time about results from the laboratory of physicist Mikhail Eremets at the Max Planck Institute for Chemistry in Germany. In 2015, Eremets announced a stunning discovery that the compound hydrogen sulfide is superconducting up to 203 kelvin (–70 °C) — positively balmy compared to the unimaginably cold temperatures at which most other materials superconduct. But a dust-up over the data in a 2022 paper by Eremets and his colleagues https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=6909eade85&e=6a1780ef1b raises an existential question about how science should be conducted in a community already in turmoil. Nature | 7 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=3876687a3b&e=6a1780ef1b Reference: *Nature Communications * https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=ec4a2544b9&e=6a1780ef1b paper https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=8cf7d34e44&e=6a1780ef1b (from 2022) Blood test uses ‘protein clock’ https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=79f6b54a8a&e=6a1780ef1b An age ‘clock’ based on some 200 proteins found in the blood can predict a person’s risk of developing 18 chronic illnesses https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=04efa0fa6c&e=6a1780ef1b, including heart disease, cancer, diabetes and Alzheimer’s disease. The clock’s accuracy creates the prospect of developing a single test that could describe a person’s risk of many chronic conditions, says the project’s lead scientist Austin Argentieri, a population-health researcher. “Ultimately, wanting to live longer will come down to preventing chronic diseases,” he says. Nature | 4 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=53dc71082f&e=6a1780ef1b Read this, then clean your microwave https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=2ad24ba014&e=6a1780ef1b Your microwave oven probably has its own microbiome — challenging the common misconception that microwaves make food safe by wiping out bacteria. Microbiologists swabbed 30 microwave ovens, and discovered 101 bacterial strains https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=29085a6a7d&e=6a1780ef1b. Most were bacteria found on human skin, but some were associated with food-borne illnesses. In laboratory microwave ovens, researchers found ‘extremophiles’ that can withstand high radiation and high temperatures. The team suggests that these strains might have been ‘selected’ evolutionarily by surviving repeated rounds of radiation, and could turn out to be useful — for the bioremediation of toxic waste, for example. Nature | 4 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=f75db14a6d&e=6a1780ef1b Reference: *Frontiers in Microbiology* https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=1cf5975302&e=6a1780ef1b paper https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=e2c9e0fa69&e=6a1780ef1b Features & opinion Time to axe ‘zombie’ wildlife conventions https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=bad29c659d&e=6a1780ef1b A moratorium implemented by the International Whaling Commission (IWC) has stopped almost all commercial whaling since 1985 — a groundbreaking achievement that saved species from extinction. But the convention has outlived its usefulness https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=57908bc3f4&e=6a1780ef1b, argue former IWC chair Peter Bridgewater and three other researchers. “IWC meetings since have been a source of acrimonious and fruitless dialogue among member nations,” they write. “By exiting with dignity, the IWC would set a powerful example for the international environmental community.” Nature | 9 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=cc9fd6aac8&e=6a1780ef1b Diversity, one qubit at a time https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=2f4f7bb55d&e=6a1780ef1b A raft of initiatives is rising to the challenge of drawing more scientists from under-represented groups to quantum computing https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=5b5ff774e7&e=6a1780ef1b. “What I find really exciting about emerging technologies like quantum computing is we have the chance to get things right early on,” says Kiera Peltz of Qubit by Qubit, which aims to make quantum-computing education more accessible. “Quantum computing will most certainly impact society, and I think that makes it even more critical to have diverse voices and experiences shaping these technologies.” Nature | 7 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=e019380811&e=6a1780ef1b Where I work [image: Guillermo Galván García in high-vis jacket holding a tablet standing among wind turbines near the coast with a bright sky above him.] https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=b2a381a379&e=6a1780ef1b “Keeping an eye on turbines is crucial, particularly on an island as windy and tropical as Tenerife,” says Guillermo Galván García, the coordinator of the Spanish island’s wind energy department. “There’s a lot of humidity and salt from the sea, as well as sand from the Sahara Desert.” He and his team have installed 28 wind turbines on the site in this photo — but the focus should not just be on building more, he says. “Renewable energies should be seen as a tool, but they’re not the only answer to society’s energy problems,” he notes. “The cleanest energy of all is that which we don’t consume.” (Nature | 3 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=d5e22101ed&e=6a1780ef1b) Quote of the day “Once everybody knew it was true, you look right and left and within a few days there exists almost nearly 100 different kinds of experiment. It’s all true everywhere.” https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=cdb849a705&e=6a1780ef1b The artistic, inventive and boundary-breaking physicist Tsung-Dao (T. D.) Lee describes the paradigm shift after he and colleagues proved that parity was violated in the weak interaction. He was one of the youngest winners of a Nobel prize at 30 years old, in 1957. He has died, aged 97. (Nobel interview | 29 min read https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=6b6a83ad80&e=6a1780ef1b, from 2007) Read the https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=8dc2766eb7&e=6a1780ef1b *Nature* https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=a029fff8f5&e=6a1780ef1b obituary by philosopher and historian of science Robert Crease https://nature.us17.list-manage.com/track/click?u=2c6057c528fdc6f73fa196d9d&id=6139d794af&e=6a1780ef1b. (5 min read) It’s fabulous to be back in your inbox after our short holiday break. This newsletter is always evolving — tell us what you think! Please send your feedback to briefing@nature.com. Thanks for reading, *Flora Graham, senior editor, Nature Briefing * *With contributions by Sarah Tomlin* Want more? 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