International Business Times UK: UFOs and the Fermi Paradox: Harvard's Avi Loeb Explains Why Hypothetical Aliens Might Ignore Earth
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International Business Times UK: UFOs and the Fermi Paradox: Harvard's Avi Loeb Explains Why Hypothetical Aliens Might Ignore Earth
Captured 2026-09-04 from International Business Times UK. The archived copy is preserved so this citation survives link rot.