This is a TRAPPIST-1e news story, published by MSN, that relates primarily to the Monthly Notices of the Royal Astronomical Society news.
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extrasolar planetsPhys Org
•89% Informative
An international team demonstrated how astrobiologists could look for life on TRAPPIST-1e based on what existed on Earth billions of years ago .
During the Archean Eon (ca. 4 to 2.5 billion years ago ), Earth 's atmosphere was predominantly composed of carbon dioxide, methane, and volcanic gases, and little more than anaerobic microorganisms existed.
The study was published in the Monthly Notices of the Royal Astronomical Society .
Biosignatures from pre-oxygen photosynthesising life on TRAPPIST-1e could lead to the discovery of life on Archean -era rocky planets orbiting sun-like and red dwarf suns.
For years , scientists have considered how a circumsolar habitable zone ( CHZ ) could be extended to include Earth -like conditions from previous geological periods.
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