Science
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Cacao was in use in South America centuries before its exploitation by civilisations in Mexico and Central America, experts say -
Experts say the animals appear able to identify people infected with the disease even if they are not showing symptoms
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Rocket scientists tell Nasa a new rover could finally unlock red planet’s secrets -
Hour-long procedure that stabilises blood sugar levels of sufferers of type 2 diabetes is still effective one year on, study shows -
Largest study of its kind finds incidence of heart attacks is higher on days with air temperatures below freezing
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The discover of a unique rooting anatomy from 407m years ago supports theory roots evolved at least twice, and step by step
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Researchers map likeliest route using least-cost calculations, line-of-sight sailing and likely sea levels -
US research shows four weeks’ abstinence improved memory, but not attention skills -
Key issues
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Frequency sharing could jam airways, lowering accuracy of forecasts, meteorologist warns -
In pursuit of a peaceful society, it is important that we record all perspectives of our complex human story, says academic Sada Mire
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Northerners aged 25 to 44 more likely to die from causes such as suicide and smoking -
Optimism is more necessary than ever, and understanding how other cultures approach life’s trials and joys may help us achieve contentment, says Helen Russell -
This Halloween, scientists across the globe will celebrate the mysterious material they believe holds the universe together -
Letters: Virgin Galactic fully recognises its existence and achievements are built on decades of work by thousands of committed individuals and government agencies, writes Virgin Galactic’s commercial director Stephen Attenborough. Plus Margaret Squires expresses reservations about driverless cars
In depth
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Frequency sharing could jam airways, lowering accuracy of forecasts, meteorologist warns
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We’re now at a fork in the road: either we cut out fossil fuels completely, or we pass on a dying planet to our children, says social scientist Mayer Hillman -
In pursuit of a peaceful society, it is important that we record all perspectives of our complex human story, says academic Sada Mire
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Pictures & video
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The US photographer Brad Goldpaint has beaten thousands of amateur and professional photographers from around the globe to win the Royal Observatory Greenwich’s title -
An international team of maritime archaeologists, scientists and marine surveyors has found more than 60 shipwrecks in the Black Sea. One of the findings has been confirmed to be the oldest intact shipwreck known to mankind.
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The Geological Society of London has announced the results of its 2018 Earth Science Week photography competition, titled Earth Science in Our Lives.
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Footage from inside the Soyuz spacecraft shows its crew at moment the rocket failed shortly after launching from Russia’s Baikonur cosmodrome
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First ground landing of reusable booster rocket on west coast of America hailed a success -
Associate Professor Jochen Brocks from the Australian National University shares a discovery which found a fossilised lifeform that existed 558m years ago. The Dickinsonia fossil has been identified as the oldest known animal, according to Brock's new research
Podcast Falling fertility: lessons learned from Botswana – Science Weekly