Re:Observable Universe contains 10x more galaxies than previ...
by Razengan on Thursday January 04, 2018 @04:35AM
(#16069044)
> For the "rogue" planets, it's easy -- we can be pretty sure they don't have any life.
Why?
Even if you assume all life requires heat and/or light, a rogue planet could produce heat/light from geothermal or other chemical activity.
A rogue planet drifting through certain nebulas might have more surrounding material for the processes of life to work with.
The life on a rogue planet may even be "artificial", say a colony of self-sufficient, self-replicating AI machines that originated elsewhere, but otherwise in-differentiable from "naturally-evolving" life.
Re:Observable Universe contains 10x more galaxies than previ...
by TeMPOraL on Thursday January 04, 2018 @07:53AM
(#16069952)
> A rogue planet drifting through certain nebulas might have more surrounding material for the processes of life to work with.
Keep in mind that nebulae are in reality less dense than industrial-grade vacuum. From the point of view of a rouge planet passing through one, it's pretty much still empty space.
Re:Observable Universe contains 10x more galaxies than previ...
by Razengan on Thursday January 04, 2018 @01:02PM
(#16072470)
What about the regions of nebulas that are about to coalesce into stars? Wouldn’t they have some kind of protostellar “stuff” at point that makes the region more active than the rest of the average nebula?
For the "rogue" planets, it's easy -- we can be pretty sure they don't have any life.
For the others, we'll believe it when we see it.