The search for life – from Venus to the outer solar system

While the discovery of the normally microbe-produced phosphine on our toxic neighbour is astonishing, other candidates for life are more promising

It remains one of the most unexpected scientific discoveries of the year. To their astonishment, British scientists last week revealed they had uncovered strong evidence that phosphine – a toxic, rancid gas produced by microbes – exists in the burning, acid-drenched atmosphere of Venus.

Related: If we don't find life on planets like Venus, doesn't it make us that bit more special? | Charles Cockell

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