New Scientist

The best place to find out what’s new in science – and why it matters.

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In this week’s issue: Neuroscience is finally helping to understand anorexia’s grip on the brain, a hidden population of moons reveal our solar system's violent history and how to distinguish between typical brain ageing and cognitive decline.

Grab a copy in shops now or download our app for digital editions. https://t.co/BsZ0drYI1g

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A study of 4.5 million people suggests that ex-smokers who take up vaping are more at risk of dying from lung cancer than people who quit without the use of e-cigarettes https://t.co/nts4hgfZHD

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Evidence is mounting that there are distinct subtypes of autism, and now, scientists have found that the condition can vary according to the strength of people's brain connections https://t.co/yATbpliEys

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Bird-mounted headsets and backpacks have revealed the surprising things pigeons do with their eyes when on the wing https://t.co/GDfTjp1KlU

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A study of 140,000 people suggests that a broadening of the diagnostic criteria for autism and ADHD explains the sharp rise in diagnoses, but that doesn't mean too many people are being told they are autistic or have ADHD https://t.co/YpiUeLWySw

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Feedback is alarmed by a study that explored how funny people think they are, and discovered certain traits in those who rate themselves the most humorous https://t.co/ZPjy0QkVph

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Inspired by Ariel Waldman’s docuseries Life Unearthed, columnist Annalee Newitz explores how microscopes, drones and specialised cameras are giving us an unprecedented view of nature from many different vantage points https://t.co/6joBFqq4pj

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Hemiscyllium dudgeonae is the tenth recorded species of walking shark, which use their pectoral fins to move across reef flats, and its limited range means it may be at high risk of extinction https://t.co/p1vL4mtZDw

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Global weather agencies have declared that El Niño has begun, and models show it is more likely than not to be a "super" El Niño. The climate pattern boosts extreme weather around the world, and could lead to record temperatures https://t.co/EZ61KOL3Oe

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Galaxies and their supermassive black holes evolve together, but which came first is an ongoing question. Now we may finally have an answer, says columnist Leah Crane https://t.co/rKVcARNwY2

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It was widely thought that the movement of water through Venus flytrap cells caused the trap to close, but detailed experiments have led scientists to propose an alternative mechanism https://t.co/jz1kloVMXY

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Physics is considered a cold, hard science – but it will transform your life if you view it with a bit more subjectivity, says Karmela Padavic-Callaghan https://t.co/UKHsEoEgH6

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With Steven Spielberg’s new extraterrestrial film Disclosure Day just out, it’s the ideal time to watch Close Encounter of the Third Kind – perhaps the perfect UFO film, says film columnist Bethan Ackerley https://t.co/hdhNngpRmn

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Scrape marks inside a skull and sharpened limb bones in a set of remains found in Scotland may be evidence of unusual Iron Age funerary rituals https://t.co/jXk73zRR4j

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We can no longer ignore the growing threat of fully autonomous weapons. The world must either act to ban them or accept that they are the future of war https://t.co/m0rS0CpNqE

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A complex ecosystem of woolly mammoths, bison, horses and big cats has been elucidated by studying the faeces of small rodents that probably ate the bigger animals https://t.co/fKjGuMezrJ

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Scientists have long grappled with how to measure the effect of social media on children. Now, the UK government has announced a total ban for everyone under 16, and researchers are rushing to design rigorous studies before it comes into effect https://t.co/pST6AF2oCW

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Our soils are teeming with networks of fungi, and we're starting to understand how important they are https://t.co/ps4AqP8lE4

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Palaeontologist Steve Brusatte's The Story of Birds offers an excellent and sometimes startling account of bird evolution, finds Michael Marshall https://t.co/xJaGdwfSGT

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UK Prime Minister Keir Starmer has warned tech firms, including Apple and Google, that they must voluntarily implement tools to stop children sharing explicit images, but experts warn this is easier said than done https://t.co/6A37OYucJS