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New Scientist - Home
New Scientist - Home
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Covid raises risk of heart issues in children more than vaccination
Getting covid-19 for the first time slightly increased the risk of heart inflammation, blood clots and bleeding disorders among children, whereas being vaccinated against the virus was much safer and sometimes protective
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The fascinating story of the ultimate cosmic law
How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe
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We're closing in on how genetics may influence your PCOS risk
In the largest genetic analysis of polycystic ovary syndrome to date, scientists have identified new variants linked to the condition, which could help us treat it more effectively
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How preppers plan to save us if the whole internet collapses
Recent outages have revealed how vulnerable the internet is, but there seems to be no official plan in the event of a catastrophic failure. Meet the team of hackers who are ready to jump into action
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COP30: Can Brazil summit get climate negotiations back on track?
Expectations are low for the UN climate conference in Belém, Brazil, but the host’s pragmatic approach could help make progress on implementation
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Advanced quantum network could be a prototype for the quantum internet
Building a working quantum internet would require overcoming a host of technical challenges, but researchers who have built one of the most advanced quantum networks to date say they think it is possible
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Brightest black hole flare ever caused by huge star being ripped apart
A distant black hole has been caught releasing the brightest flare ever, which is the result of it ripping apart and devouring an enormous star
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Cavities could be prevented by a gel that restores tooth enamel
Enamel does not naturally regenerate, which can lead to painful cavities, but a gel that harnesses some of the properties of saliva could restore the hard, shiny layer to teeth
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Walking 3000 steps a day seems to slow Alzheimer's-related decline
Alzheimer's-related cognitive decline could be slowed by taking as few as 3000 steps a day, possibly due to the effects of regular exercise on brain health
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Antarctic glacier's alarming retreat is the fastest ever seen
Hektoria glacier on the Antarctic Peninsula retreated 25 kilometres in just 15 months. Its rapid melt could have implications for other glaciers and the rate of sea level rise