Last week, a team of astronomers led by the University of Cambridge professor Nikku Madhusudhan announced that they had found tentative evidence for a ‘biosignature’ embedded in the light from a distant planet. Scientists and non-scientists around the world tried to interpret the results. Was this it? Was this the moment when humanity could finally claim it had answered that ancient question: are we alone?
As an astrophysicist involved in the search for life beyond Earth, I can tell you that the results were not that moment.
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