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Sea-going search for alien fragments yields odd spherules

earthsky.org

avi loeb earth im1 interstellar meteor spherules
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Why Avi Loeb thinks there's a “possibility” that 'Oumuamua was a spacecraft

salon.com

astronomy avi loeb books interview ‘oumuamua
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Harvard Professor Says Alien Technology Visited Earth in 2017

yahoo.com

alien object avi loeb harvard solar system theoretical physicist
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Harvard researchers see alien potential in mysterious object

harvard.edu

alien asteroid avi loeb cfa fas
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