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Scientists have identified 29 exoplanets that are perfectly positioned that could possibly host life aside from Earth. However, a new study suggests that planets with Earth-like biosphere in the Milky Way could be rarer than previously thought.
Monthly Notices of the Royal Astronomical Society, found that only Kepler-442b receives enough sunlight from its star to form a biosphere with oxygenic photosynthesis, a crucial process to support life.
According to MailOnline, researchers believe that all known exoplanets, except for Kepler-442b, are well below the threshold. Hence, photon flux in these exoplanets would probably fail to host an atmosphere that is similar to Earth s.
The study, published in the Monthly Notices of the Royal Astronomical Society, suggests that the NASA James Webb Space Telescope (JWST), scheduled to launch in November 2021, will be sensitive enough to observe the birth of galaxies directly.The UK-l