Strange 'eggshell planets' are among the rich variety of exoplanets possible, according to a study. These rocky worlds have an ultra-thin outer brittle layer and little to no topography. Such worlds are unlikely to have plate tectonics, raising questions as to their habitability. Planetary geologists have said at least three such worlds found during previous astronomical surveys may already be known.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/11/211110104608.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/11/211110104608.htm
Tread lightly: ‘Eggshell planets’ possible around other stars
![Tread lightly: ‘Eggshell planets’ possible around other stars]()
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November 10, 2021
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