That still has nothing to do with Biology probably not being the right approach to use here. Evolution doesn't know or care about space travel. It's separate c

That still has nothing to do with Biology probably not being the right approach to use here. Evolution doesn't know or care about space travel. It's separate concerns entirely. One is a function of the environment and adapting to it, the other requires a sapient species to create and apply technology, which - judging from current observation - is neither a common, nor obvious result of evolution.