Civilization in a Red Dwarf Solar System

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The scenario describes a moon with sufficient size and atmospheric pressure to support liquid water, orbiting a gas giant around a red dwarf star. Life on this moon has evolved to withstand high radiation levels, which would be lethal to humans. This adaptation includes rapid cellular regeneration, leading to a unique condition where reduced radiation exposure could trigger uncontrolled cell growth, resembling a form of pan-somatic cancer. Consequently, organisms from this moon would find Earth's environment hostile, particularly due to unfamiliar proteins. The discussion references research on extremophiles, such as "Conan the Bacterium," which highlights the differences in radiation tolerance between prokaryotic and eukaryotic life forms, suggesting that while some life can survive extreme conditions, eukaryotic organisms may not share the same resilience.
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My scenario is as follows: A moon with sufficient size and atmospheric pressure to allow for liquid water on the surface orbits a gas giant which in turn orbits a red dwarf star. The life on this moon is adapted to levels of radiation that would kill human beings. Part of the adaptation is quick regeneration, such that lack of regular exposure to high radiation would result in the runaway growth of cells--a kind of pan-somatic cancer. To such life, the surface of the Earth would represent a hostile environment, even without Earth's being contaminated with lots of proteins to which the Red Dwarfers have never been exposed. As for surviving high radiation, note this article from CNN. It says nothing about eukaryotic life being able to survive the radiation levels that "Conan the Bacterium" can, but for the purposes of writing science fiction, I can overlook that point. https://www.cnn.com/2024/12/11/scie...m_medium=email&utm_source=nautilus-newsletter

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