Astronomen der UC Irvine entdecken einen neuen erdähnlichen Exoplaneten
Astronomen der UC Irvine entdecken einen neuen erdähnlichen Exoplaneten
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I saw this on the exoplanets sub. The interesting thing about this planet is that it’s on the cosmic shoreline, so it can hold onto an atmosphere (not guaranteed, but better odds).
Surely the reason Mars has had most of its atmosphere stripped isn’t that it’s far from the sun, but that it’s small, meaning the atmosphere extends very far from the planet, meaning it is very easy for the solar wind to strip away. A more massive planet, like Earth or the planet in the article, holds on to atmosphere much more tightly.
A bigger problem is probably that it’s orbiting a red dwarf, meaning it’s likely got tidally locked rotation, meaning there’s a significant risk the entire atmosphere has precipitated out as snow on the permanently dark side of the planet.