We will never get beyond "that's neat and I can't explain" because there will always be liminal events.
Your "it could be aliens" argument applies exactly as well to fairies, angels, demons, demi-gods, wizards, Satan, time travelers, humans from other dimensions, etc. If you weight one of them more highly than the others, you should examine why. But the answer won't be in the evidence.
Your "it could be aliens" argument applies exactly as well to fairies, angels, demons, demi-gods, wizards, Satan, time travelers, humans from other dimensions, etc. If you weight one of them more highly than the others, you should examine why. But the answer won't be in the evidence.