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| The volcanic activity on Jupiter's moon Io is caused by friction and heating in its centre due to gravitational interactions with neighbouring moons. (NASA/JPL/University Of Arizona) | ||||||
Violent volcanoes shaped Jupiter's moonThe most volcanically active place in the Solar System, Jupiter's moon Io, has been shaped by volcanoes for billions of years. Lava and ash spewing from hundreds of volcanoes continuously resurface Io, obscuring any physical evidence of its history. Scientists now used sulfur in the moon's atmosphere as "a tracer for studying Io's long-term evolution", explains planetary scientist and study co-author Katherine de Kleer. Because lava on Io is thought to be similar to magma on early Earth, "Io's volcanism might be giving us a window into the mechanisms of volcanism and Earth's early history", she adds. Nature | 4 min readReference: Science paper | ||||||
China's cities are sinkingNearly half of China's major cities are sinking, with one-quarter of China's coastal land expected to slip below sea level in coming decades. The land subsidence could affect hundreds of millions of people. Researchers say a range of natural and human factors are to blame, including the depth of a city's bedrock, groundwater depletion, the weight of buildings, the use of transport systems and underground mining. When combined with rising sea-levels owing to climate change, the potential impact is "terrifying", says geophysicist Wei Meng. Nature | 4 min readReference: Science paper | ||||||
Why queasiness kills hungerResearchers have discovered a cluster of brain cells that kill the urge to eat, and it seems that feeling nauseous is responsible for firing them up. Researchers found the cells by scanning the brains of mice that were injected with a nausea-inducing substance. When the researchers artificially activated the cells, hungry mice walked away midway through eating. But when researchers blocked the cells, nauseous mice ate their food unperturbed. The results suggest that fullness and nausea are controlled by separate brain circuits. The information might help to understand dysregulated eating, such as obesity and anorexia, says neuroscientist Haijiang Cai. Nature | 3 min readReference: Cell Reports paper | ||||||
Question of the weekA group of researchers wants scientific publishers to display a 'nutrition label' on papers that includes facts about the journal (acceptance rate, for example) and the article (such as the number of reviewers and authors' competing interests). "We want to help readers, including researchers, the media and the public, to decide whether an article is worth reporting on or citing," says education researcher John Willinsky, who heads the group. What do you think about paper 'nutrition labels'?
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| 'Nutrition labels' like this one could also include averages for other articles and journals for comparison. (J. Willinsky & D. Pimentel/Learned Publishing (CC BY 4.0 DEED)) | ||||||
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Futures: Dad mows on Saturday morningsA father and daughter bond and battle over a little technological assistance in the latest short story for Nature's Futures series. Nature | 6 min read | ||||||
Five best science books this weekAndrew Robinson's pick of the top five science books to read this week includes a timely book on conspiratorial language in politics and a probing history of sea-floor drilling. Nature | 4 min read | ||||||
Podcast: How working memory worksAnyone who's ever entered a room and thought, "why did I come in here?" knows how easy it is for our working memory to get interrupted. "They are very susceptible to interference, as we all know," says neuroscientist Ueli Rutishauser. "If we even briefly get distracted, they are gone." By looking at the brain activity of people doing working-memory tasks, a team has now confirmed that keeping hold of these temporary memories requires two brain regions: one to temporarily store it and another to push out distractions. Nature Podcast | 34 min listenSubscribe to the Nature Podcast on Apple Podcasts, Spotify or YouTube Music, or use the RSS feed. | ||||||
Quote of the day"It's important to rest sufficiently if you want to do good research… If there's anything I can recommend, it's having more holiday time."Avoiding burnout is key to scientific success, says virologist Hulda Jónsdóttir, who studies some of the world's most pathogenic viruses. (Nature | 6 min read) | ||||||
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What matters in science | View this email in your browser Tuesday 12 December 2023 Hello Nature readers, Today we discover a hybrid computer that combines lab-grown brain tissue with electronic hardware. Plus, we explore the risks of cannabis to young people and catch up with the COP28 climate conference as it overruns its deadline today. Part of a brain organoid, in which stem cells (pink) are differentiating into neurons (purple). (Steve Gschmeissner/Science Photo Library) ...
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