UFOs and the Fermi Paradox. If someone is out there, then where are they?
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UFOs and the Fermi Paradox. If someone is out there, then where are they?
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About this listen
Andrew Fraknoi is a professor of astronomy who wonders if we are alone. And if not, where are they?
What listeners say about UFOs and the Fermi Paradox. If someone is out there, then where are they?
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In the spirit of reconciliation, Audible acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.