Life develops on a moon left in darkness?
In the deep, outer reaches of our galaxy, there is a rogue gas giant which, due to an unfortunate event, was flung from its native orbit into interstellar space. It has a mass 12 times that of Jupiter, approaching the title of Brown Dwarf.
It has only 2 moons, one of which developed life during its time in its native system. The larger moon has a mass which is about 1/2 of the mass of Earth and is close enough to its parent planet that it is under constant stress from tidal heating.The other moon is much farther out and is comparable in size and mass to Mimas.
The main moon has an atmosphere which is comprised of almost equal parts of oxygen and nitrogen, with about %0.01 of its mass being water.
Could life continue to be sustained after the planet's ejection from the system? And an additional and secondary question, what would be the effects on this ecosystem if it re-entered another star system?
This post was sourced from https://worldbuilding.stackexchange.com/q/173621. It is licensed under CC BY-SA 4.0.
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