How lightning gets so hot
A bolt can briefly heat the air around it to temperatures far above the surface of the Sun.
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Fresh writing on technology, science, style and the ideas worth your time.
Why Antarctica counts as a desert
Deserts are about dryness, not heat, and the coldest continent is among the driest.
Three hearts and blue blood: the octopus
Few animals are as unusual as the octopus, with a body plan unlike our own.
Oxford is older than the Aztec Empire
Dates that seem far apart can overlap in ways that change how we picture the past.
Three things worth knowing about the human body
From the bones we are born with to the acid in our stomachs, our bodies are full of surprises.
By alex Read more Three things worth knowing about the human body
The honey that outlasts almost everything
Low water, high acidity and a helpful enzyme make honey one of the most stable foods we know.
Why a day on Venus lasts longer than its year
Venus spins so slowly that a single rotation outlasts a trip around the Sun, and it turns the opposite way to most planets.
By alex Read more Why a day on Venus lasts longer than its year
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