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Why a Harvard professor thinks he may have found fragments of an alien spacecraft
(www.independent.co.uk)
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The Busy Center of the Lagoon Nebula
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This is an entertaining video discussing Avi Loeb in the context of physics crackpots and grifters:
[https://www.youtube.com/watch?v=aY985qzn7oI](harvard & aliens & crackpots: a disambiguation of Avi Loeb)