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Alien planets might teem with purple — yes, purple — lifeThe most abundant stars in our Milky Way galaxy are small ... It's even possible that such purple bacteria once flourished on an early Earth. After all, our planet has only had oxygen for about ...
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Forget green: Purple may be key to finding planets capable of hosting alien life, study saysHowever, you don't have to look off-world to find purple bacteria ... be primed to thrive on planets that circle cooler red dwarf stars – the most common type in our galaxy.
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