Forget green: Purple may be key to finding planets capable of hosting alien life, study says
But it's far more likely for astronomers combing the cosmos for signs of extraterrestrial ... that our ground and space-based ...
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Alien planets might teem with purple — yes, purple — life
NASA has already spotted a diversity of rocky, Earth-like worlds in the cosmos ... was to show how space observatories could — and should — look for the telltale signs of purple life when ...