If Panspermia is correct than aliens were here at least 0.5-1 billion years ago. We just call it Life now.
Discussion
That's the best take I guess. Man I was way off in my time estimate
If Panspermia is correct than aliens were here at least 0.5-1 billion years ago. We just call it Life now.
That's the best take I guess. Man I was way off in my time estimate