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

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Beneath the vast Arctic and Antarctic ice sheets, there’s a weird world unlike any other

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