Not a cosmologist but I’d guess that there are enough weird unexplained phenomena in cosmology for it to be possible for aliens to hide in them, or, for us to have just rationalized them away as natural phenomena with fake cosmological theories.
Not a cosmologist but I’d guess that there are enough weird unexplained phenomena in cosmology for it to be possible for aliens to hide in them, or, for us to have just rationalized them away as natural phenomena with fake cosmological theories.