Ancient cultures built some impressive structures that incorporated astronomical functions and information (Stonehenge, Chichen Itza, the Great Pyramid). A friend or acquaintance of yours tries to argue that some of these structures and artifacts are evidence of "ancient astronauts" or visits by intelligent aliens. How would you rebut or argue against this idea?
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Answer:
there is certainly no proof that extraterrestrials ever came inside earths atmosphere as if they had they would return and for the past 80 years or so there have been no trace of et so on that foot we get an idea that there might be other galaxies and in those galaxies many other planet but there is no trace of them visiting earth.
with that point i want to give the scientific idea that if they ever found that there is life on earth so they would not risk there life like that and would have sent some satellite which if sent should be there in our earths atmosphere because earth attracts other object thanks to gravity and it is not
i conclude this by saying ET might exist but we dont hove any contact with them till now
if this helped mark it brainliest