Two Princeton researchers recently speculated that we really might be alone in the universe, but the study of red dwarf stars in the Milky Way found nine super-Earths - and two in the 'habitable zone' where liquid water could exist.
Red dwarf stars account for 80 per cent of the 200 to 400 billion stars in our galaxy - and scientists now believe that 40 per cent of those might have a planet in the habitable zone. More Read
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