In 2015, scientists have discovered an exoplanet K2-18b, and in 2019, the data analysis of space telescopes Kepler, Spitzer and Hubble showed the presence in the planet’s atmosphere of water vapor. Now scientists have performed a detailed analysis of the data obtained and published interesting data in a new article.
What is known about exoplanets
Red dwarf K2-18 in the constellation Leo is located at a distance of about 124 light-years from Earth. Its radius is 2.6 times larger than the earth, and the mass is 8.6 times the mass of our planet.
After analyzing the data obtained with several telescopes, the researchers came to the conclusion that the planet is really a large amount of water vapor in the atmosphere, which confirmed the theoretical possibility of a person to survive on its surface.
Water on K2-18
Creating a digital model, scientists at Cambridge University have discovered that the surface of the exoplanet K2-18b can be sources of water in the liquid state. The temperature and composition of the atmosphere create habitable conditions, according to Sience Alert.
Water vapor found in the atmosphere of a number of exoplanets, but even if the planet is in the habitable zone, this does not necessarily mean that on the surface there are suitable conditions for life. To determine the prospects of the population, it is important to obtain a unified understanding of the internal and atmospheric conditions on the planet, in particular, could exist on the surface of liquid water,
– said study leader Nikki Madhusudhan.
Despite the significant size of the hydrogen shell K2-18b does not have to be thick as previously assumed, and the aqueous layer can have appropriate conditions to sustain life.
For a more detailed study, astronomers will have to wait for the completion of a new heavy-duty telescope James Webb, who is able to determine the composition of exoplanet atmospheres. It will be ready in 2021.
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