It revealed that this planet always faces the star only on one side. As a result, the heat may be too high in that area. On the other hand, the conditions are likely to be favorable for the survival of life. According to NASA, this planet is subject to frequent volcanic eruptions like Jupiter’s moon ‘Io’. LP791-18D was discovered with the help of data from the Transiting Exoplanet Survey Satellite (TESS), the retired Spitzer Space Telescope.
He said that the third planet orbiting a particular star is full of volcanoes, which have not been directly observed. But, that is thought to be due to its significant gravitational interaction with two other giant planets orbiting the star. ‘LP 791-18 d, on the one hand, is constantly facing its star. The dayside may be too hot for liquid water to exist on the surface… but we think that volcanic activity throughout the planet can sustain the atmosphere. The water condenses at night,’ said study co-author Björn Benneke. .
“There is no direct observational evidence for volcanoes on this planet, but it is possible that life on it could have survived,” said University of Kansas astronomy professor Ian Crossfield, who participated in the study, published in the journal Nature. “The surface temperature appears to be slightly warmer than Earth. It is at the inner edge of the habitable zone around the star, or called the Goldilocks zone. Not so hot, not so cold. Perhaps it can hold liquid water on the surface,” he said.
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