Holidaymakers have one major thing in common with scientists who are on the hunt for alien life: their plans are often thwarted by clouds. The clouds on alien worlds are such a long-standing issue – o

Amazing answers to your curious questions

Soils are the world’s most pervasive ecosystems, and arguably its most complex and important. They’re home to more than half the planet’s species. But they’re also one of the ecosystems we know the le

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Where do we find sodium chloride in nature and why do we enjoy it in food so much?

Hidden preservatives, disguised sugars, ultra-processing and even insects: uncover the truth behind your food’s shopping list of secret ingredients