New study suggests some exoplanets orbiting red dwarfs may be habitable after all

Steam atmosphere thermal profiles. Each group of five profiles shares the same bolometric emission . The profiles computed for different stellar spectra are compared with convective profiles of the same emission. For each computed profile, the Bond albedo and instellation are given . DOI: 10.1038/s41586-023-06258-3

A team of astrophysicists from the University of Bordeaux and Observatoire Astronomique de l'Université de Genève is suggesting that some exoplanets may not have been too hot during their formative years to harbor life today. In their paper published in the journal, the group suggests that due to factors not considered in the past, some exoplanets may not have grown so hot that they lost the water in their atmospheres to evaporation into space.

Current theory suggests that most exoplanets orbiting close to red dwarfs are unlikely to harbor life. This, the theory also suggests, is because during their early years, when their star was hotter,But unlike more, where the water in the atmosphere would cool, condense and form oceans, the water would evaporate and dissipate into space, making the planet too dry to support life.

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