Could aliens have visited Earth before humans developed civilization? Some scientific clues keep the question alive

Earth’s deep past leaves plenty of unanswered questions. None currently proves an alien visit, but scientists know the ...

Did humans evolve from apes? Or were we created by aliens? | From evolutionary theory to the alien hypothesis, thinking about 'who we are'

"Humans evolved from apes." Many people were taught this in school. However, when you start thinking about it a little more deeply, various questions arise.Why did only humans build a civilization?

Can Higher-Dimensional Aliens Exist? Considering the Contradictions of an "Invisible World" Through the Lens of Physical Laws

Can Higher-Dimensional Aliens Exist? Considering the Contradictions of an "Invisible World" Through the Lens of Physical ...
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Earth’s Weirdest Roommates: The Cryptoterrestrial Hypothesis | 531

What if the aliens aren’t coming from space because they never left Earth? Enter the Cryptoterrestrial Hypothesis, the ...
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Columbia professor predicts humanity’s first alien encounter will be ‘loud’ and push civilisation to the brink

Columbia University professor David Kipping predicts humanity's first alien encounter will be with a rare, "loud" technosignature from an unstable civilization. His "Eschatian Hypothesis" suggests ...
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The Eschatian hypothesis: Why our first contact from aliens may be particularly bleak, and nothing like the movies

A new preprint from David Kipping, assistant professor of astronomy at Columbia University, has suggested that our first contact with aliens will likely be atypical, and particularly bleak. Since at ...
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How an ancient alien theory changed 2001: A Space Odyssey

2001: A Space Odyssey has a reputation for being one of the most unusual movies ever released by Hollywood. The story behind it might be even stranger than the film itself. Interestingly, 2001: A ...