The piece explains something important: Not only is there life deep underground, but geological and biological processes regularly bring them in contact with surface life and there are organisms that can survive in both environments.
https://aeon.co/essays/deep-beneath-the-earths-surface-life-is-weird-and-wonderful … via @aeonmag
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The consequence of this is that life on the surface of a planet can be reseeded from deep underground. This means life on planets is more robust than we thought in past decades even under difficult conditions or through cosmic catastrophes. Relevant: https://acd-ext.gsfc.nasa.gov/People/Jackman/Melott_2004.pdf …
2:18 PM - 6 Mar 2018
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