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Caves are among the last truly wild places, with many yet to be explored. But even relatively accessible caves still harbour secrets about our distant ancestors. Thanks to new digital technology, archaeologists are able to excavate ever deeper into human history by unveiling ancient cave art obscured by thousands of years of weathering.
Archaeologists Paul Pettitt and Alistair Pike lift the lid on a project in Alabama that has uncovered huge drawings of animals and intricate human figures. It gives us tantalising hints about the lives of the ancients and how they depicted their world by firelight and smoke.
If you’re still struggling months after contracting COVID, you’re not alone. Researchers have found that long after apparently recovering, one in seven people still suffer from cognitive difficulties equivalent to 20 years of ageing. And speaking of cognitive abilities, we all have that friend or relative who claims they don’t need a lot of rest to be at their best. But are they right? New research explains how much slumber you need, and whether some people really are wired to get by on less sleep.
Today is also polling day for the local elections across Britain, plus a crunch vote for the 90-seat Northern Ireland assembly. Don’t miss our area-by-area guide on all the things that matter.
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Jenna Hutber
Science and Technology Commissioning Editor
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Author provided
Paul Pettitt, Durham University; Alistair Pike, University of Southampton
A team of US archaeologists have revealed cave art almost 2,000 years old.
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Hyejin Kang
Adam Hampshire, Imperial College London; David Menon, University of Cambridge
A new study finds that the cognitive loss from severe COVID is the same as losing 10 IQ points.
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Most of us struggle to think straight after a poor night’s sleep.
Hank Grebe/Shutterstock
Barbara Jacquelyn Sahakian, University of Cambridge; Christelle Langley, University of Cambridge; Jianfeng Feng, Fudan University; Wei Cheng, Fudan University
Both too much and too little sleep may interfere with our cognition.
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However you get there, just get there.
Alamy/Guy Harrop
Jonathan Tonge, University of Liverpool
What’s happening in England, Northern Ireland, Scotland and Wales this Thursday.
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Ukraine Invasion
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Daniel Salisbury, King's College London
Captured military equipment in Ukraine has revealed the extent to which western tech is used in Russian weapons systems.
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Politics + Society
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Chris Greer, University of Essex; Eugene McLaughlin, City, University of London
In focusing on Savile as an individual, this investigation downplays the role Britain’s major institutions played in producing his celebrity icon mask.
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Jayanthi Lingham, University of Warwick
Massive price rises in Sri Lanka have led to protesters looking for economic and governmental change.
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Environment
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Vikki Thompson, University of Bristol; Alan Thomas Kennedy-Asser, University of Bristol
The current heatwave isn’t even a huge outlier compared to normal temperatures.
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Avit K Bhowmik, Stockholm University; Neil Grant, Imperial College London
Research shows large-scale reliance on carbon capture risks postponing climate action too far into the future.
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Education
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Elizabeth Rushton, UCL; Lynda Dunlop, University of York
Teachers and young people told us that action was needed in classrooms, schools, communities and from the government.
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Health
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Conor Meehan, Nottingham Trent University
The latest report from the WHO and Unicef found cases have increased nearly 80% worldwide.
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Featured events
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— Alan Walters Building, Edgbaston Campus, University of Birmingham, Birmingham, Birmingham, B15 2TT, United Kingdom of Great Britain and Northern Ireland — University of Birmingham
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— Drake Circus, Plymouth, Devon, PL4 8AA, United Kingdom of Great Britain and Northern Ireland — University of Plymouth
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— Online, Southampton, Southampton, SO17 1BJ, United Kingdom of Great Britain and Northern Ireland — University of Southampton
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— Elgar Concert Hall, The Bramall, University of Birmingham, Birmingham, Warwickshire, B15 2TT, United Kingdom of Great Britain and Northern Ireland — University of Birmingham
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