Scientists think that life can thrive on a rogue planet’s moons.

"New research points to a previously overlooked setting for life: moons drifting through interstellar space with no sunlight at all. Under the right conditions, they may maintain long-lasting, habitable environments (Artist’s concept). Credit: SciTechDaily.com" (ScitechDaily, Life Without a Sun? Scientists Say It May Thrive on Rogue Planet Moons)

Rogue planets, or at least some of them, have an origin as a planet in a planetary system. Then, a cosmic catastrophe, such as a nova eruption or supernova explosion, pushes that planet away from its orbital trajectory. This causes a situation. Where a rogue planet and its moons can start to travel through the universe. 

But can those rogue planets or their moons host life? The fact is that. Rogue planets are distant objects from their star. The star changes into a red giant before it explodes. And in that short period, it’s possible that primitive lifeforms start to form on distant planets. 

Then, a nova or supernova pushes that planet away from its solar system. In that process. The temperature on the planet drops very fast. In that case, some of those primitive organisms could survive in ice. There is a possibility that those organisms can take the rest form. Maybe. Those bacteria can turn. They themselves are spores. Like anthrax bacteria. And those rest forms could remain theoretically forever if they are in stable conditions. But can those spores wake up? That is one of the most interesting questions. There is a possibility. 

Those lifeforms. They can get their energy from volcanic heat. If the organism lives on the moon, which orbits a large rogue planet, that can cause a tidal wave, which keeps that moon’s inner core liquid. Tidal forces can form very high temperatures. And that energy. It can give enough energy. That some tiny organisms could survive and thrive on that planet, or its moons. Those small organisms could live under the icy shell of those exoplanets. This means that rogue planets or their moons might host life, which could be very similar to Earth's bacteria. 

Can a rogue planet support intelligent life? 

Life on some  rogue planet’s moons is a very rare but possible idea. In some extreme models of that idea, the alien civilization could see that their star will turn unstable. If they don’t have the resources to start interstellar travel, that could remain for millennia. Those alien creatures could hide their gemates under their home planet’s surface. 

Intelligent aliens can build bases under a rogue planet’s ice shell. They can use nuclear power or water that is liquid because of tidal forces. As a power source. Those tidal forces can keep the core of those moons warm. And there can be liquid water under a very thick ice layer. 

This means those maybe intelligent creatures could remain under the ice of rogue planets. The idea is taken. From the Sci-Fi series, where the human moon colony travels across the universe on the moon. That nukes were thrown away from the Earth orbiter. 

Could some intelligent civilization think that it can survive the explosion of its star by burying its spores? into the ice of the freezing planet that the explosion throws away from its trajectory? This is one of the wildest scenarios of things that a rogue planet can cause. And of course, maybe someday. Humans can make bases under the ice of rogue planets. 

https://scitechdaily.com/life-without-a-sun-scientists-say-it-may-thrive-on-rogue-planet-moons/