LHS 1140b potentiell habitabel?

[P_E_T_E_R]

LHS 1140b umkreist den roten Zwergstern LHS 1140 im potentiell habitablem Abstand von ca. 0,1 AU mit einer Periode von ca. 25 Tagen. Der Planet gehört mit einer Masse von 5,6 Erdmassen zur Kategorie der Supererden. Er hat eine gebundene Eigenrotation mit seinem Zentralgestirn, zeigt diesem also immer die gleiche Seite. Es gibt Hinweise auf eine Atmosphäre.

Astronomers Find an Atmosphere on a Nearby Earthlike Planet

It’s the first potentially habitable world known to host an atmosphere, making it a lead contender in the search for life beyond our solar system.​

There are a few key features that make a planet amenable to life, at least life as earthlings know it. It should be rocky, be at the right temperature for liquid water to exist and have an atmosphere.​

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On Thursday, a team of astronomers announced that it had identified a world with all three traits.​

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“At this point, we have absolutely no evidence for life on the planet,” said Collin Cherubim, a planetary scientist who recently earned his Ph.D. from Harvard University. “But we think all of the really important, essential ingredients are there.”​

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Gruß, Peter