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by ericbarrett 913 days ago
You’re right about satellites but I think you’re underestimating how long a monolith could last on the Moon. For something big and built to last, it could be many many millions of years https://bigthink.com/starts-with-a-bang/astronaut-footprints...
1 comments

But we haven’t put anything built to last on the moon - rovers and landing stages are very small and relatively fragile

A similar civilisation may have gone to the moon, but thanks to irradiation and micrometeorites over millions of years. Footprints and tyre tracks would certainly be gone, and while you could land at an Apollo landing site and detect remains of refined metal, it’s unlikely to be something you could see from orbit with our level of equipment, you’d have to get up close and personal, and we haven’t done that.