… But aliens.
Is it possible for aliens to exist in a Christian worldview? I see no issue with the notion of non-sentient life (though I suspect that ‘life’ which evolves on another planet would not be life as we know it, unless theories of panspermia are true) existing, with regards to sentient alien life the question may be different. Can they still achieve salvation?
I think it is a valid debate, whether or not alien life exists. Though I do suspect it would only a ‘life’ in the broad sense, or coincidentally.