Adam Frank: belief

Transcript context

…Yeah. Speaking of biases, do you think aliens have visited Earth? You’ve mentioned that they could have visited and started civilizations and we wouldn’t even know about it if it was 100 million years ago. How can we even begin to answer this question, whether- Got to look, got to figure out ways to look. So, it’s not high on my list of things that I think are probable, but it certainly, it needs to be explored. And unless you look, you never know. So, looking on the moon, where would we find if aliens had passed through the solar system anytime in the last 3 billion years, where might we find artifacts? Where might artifacts still be around? Earth? Probably not because of weathering and resurfacing. The moon’s a good place. Certain kinds of orbits, maybe they parked a probe in an orbit that was stable. So, you got to figure out which orbits actually you could put something there and it’ll last for a billion years. So, those are the kind of questions. Like I said, it’s not high on my list of thinking this could happen, but it could happen. Unless you look, you don’t know. Speaking of biases, what about if aliens visiting Earth is the elephant in the room? Meaning the potential of aliens, say seeding life on earth?…

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