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LiveScience
LiveScience
Stephanie Pappas

Purple bacteria could be key to finding extraterrestrial life on exoplanets

High-energy gamma-rays glow purple in this NASA image of a distant galaxy. Looking for purple-hued exoplanets may help scientists find signs of extreme alien life, new research suggests.

To find life on far-off planets, astronomers may need to look for pinpoints of purple.

New research unravels the light signals that are likely to come from worlds where oxygen and sunlight are in short supply — which is likely the case for many exoplanets discovered so far.

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