Illustration of aliens.

'We're not prepared!': How a Harvard professor thinks humanity's chaotic first contact would actually unfold

From interstellar visitors to alien radio signals, scientists are asking a question once confined to science fiction: what happens when we finally make contact?
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Woman sweating.

What your sweat is trying to tell you about your health

Molecules hiding in your body odour can reveal vital clues about the state of your health
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3D render of a human brain gradually breaking apart and dissolving into soft, flowing fragments drifting away as if carried by wind against a dark blue background. The blue-toned medical visualization represents neurological deterioration, memory loss, and cognitive decline associated with conditions such as Alzheimer's disease, dementia, and mental health disorders. Side view with copy space.

The dementia vaccine some of us are taking without realising

The evidence has been quietly building for over a decade. Now experts can't ignore it
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Image showing the circulation of AMOC

A ‘monster web’ of ocean currents is set to collapse. And the US is not prepared

Off the east coast of Greenland, scientists are studying the fate of the Atlantic Ocean circulation. Others are looking to prevent disaster
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Person measuring waistline.

We may finally know why it’s so hard to lose weight

A mouse study has found that 'obesity memory' in immune cells may be holding back fat loss
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Eight mind-blowing facts about cats, according to science © Getty Images

8 mind-blowing (but very cute) facts about cats, according to science

Curiosity won't kill these cats
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These simple changes could stop you ever getting constipated, says world-leading gut health doctor

Turns out the way you sit – and when you go – matters as much as what you eat
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Tomato dispenser, one of the strangest ever inventions

15 of the world's weirdest-ever inventions

From the V-shaped bed designed by an exercise legend, to a robot that feeds you tomatoes
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Illustration of a brain with cogs inside

'It's rigged': The dirty secret behind what IQ scores really measure

Besides being next to useless for actually measuring intelligence, here's why we should kill IQ scores for good
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