Water is one of the key traits every planet should possess to harbor life. However, some TRAPPIST-1 planets could have too much of it. If there is too much water inside a planet’s atmosphere, scientists could face various difficulties finding evidence of life, according to a new study dedicated to the planets orbiting the star TRAPPIST-1.
The researchers studying the TRAPPIST-1 planets published their findings in the journal Nature Astronomy, and they report huge amounts of water on the star’s planets. Two of the planets have surfaces covered in water by more than 50%. This would make it extremely challenging for researchers to differentiate between biological life forms and geochemical signatures.
TRAPPIST-1 is an M-type red dwarf star that is located at only 40 light years away from the sun. According to scientists, the star hosts seven planets that orbit it, while three of the planets are located in the habitable zone of the star.
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