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Environment

Your flight emissions are way higher than carbon calculators suggest

Existing tools that work out the carbon footprint of flights greatly underestimate their warming impact, say the makers of a new calculator

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The gut microbiome may play a role in shaping our personality

Humans

Boy’s body was mummified and turned green by a copper coffin

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Magnetic gel could remove kidney stones more effectively

Physics

The US is unlikely to test nuclear weapons, despite what Trump says

Life

Dinosaur skeleton settles long debate over ‘tiny T. rex’ fossils

Technology

Germanium superconductor could help build reliable quantum computers

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Stem cell therapy lowers risk of heart failure after a heart attack

Space

A tiny nearby galaxy is home to a shockingly enormous black hole

Humans

Prehistoric crayons provide clues to how Neanderthals created art

Ochre artefacts found in Crimea show signs of having been used for drawing, adding to evidence that Neanderthals used pigments in symbolic ways

Christmas Island’s red crabs undergo their annual migration

Technology

Analogue computers could train AI 1000 times faster and cut energy use

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Can’t focus after a bad night’s sleep? Your dirty brain is to blame

Physics

Quantum-inspired algorithm could help reveal hidden cosmic objects