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Where does space begin? Here's why it's closer than you think

Space

Where does space begin? Here's why it's closer than you think

The jump from Earth to space is often thought to happen 100 kilometres up, but it's time to think again and bring the boundary closer to home, says Jonathan McDowell

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Tesco in church building

Life

Has the chicken and egg puzzle over religion's decline been settled?

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Mosa Meat burger

Environment

Can you get meat without dead animals? Why farmers are wrong to say no

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This image made from video of a fake video featuring former President Barack Obama shows elements of facial mapping used in new technology that lets anyone make videos of real people appearing to say things they've never said.

Technology

Deepfakes won't wreck politics this year even if politicians might

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The rescue submarine designed by Elon Musk's engineers

Technology

Elon Musk’s submarine plan to rescue Thai cave boys deserves respect

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A cat by the roadside

Humans

Prolific ‘M25 serial killer’ beheading cats is an old feline foe

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A close-up of a hedgehog

Environment

Chris Packham: 'Let's stop sleepwalking towards mass extinction'

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coffee on a table

Health

Eight cups of coffee a day make you live longer? Don't bet on it

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march for the NHS

Health

How to use the £20bn NHS birthday gift: an alternative wish list

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Jeanne Calment

Humans

How old could humans get? We probably haven't hit the limit yet

The idea that we have reached the maximum possible human lifespan is highly divisive. New evidence adds fuel to a fiery debate, says Tom Kirkwood

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Technology

Will we ever go on holiday in an electric-powered plane?

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Technology

A new arms race threatens to unleash laser warfare in the skies

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Physics

More penalty shoot-outs needed to make future World Cups fairer

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Health

Time to end the cruel ban on using cannabis therapy for epilepsy

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