Bonus: Harvard Astronomer On Why Aliens Aren't Just Science Fiction

Bonus: Harvard Astronomer On Why Aliens Aren't Just Science Fiction

By WBUR

Superstar astronomer Avi Loeb discusses mysteries surrounding the interstellar space object known as 'Oumuamua, why it could be a probe sent by an alien civilization, and how the scientific community should be more willing to acknowledge and embrace uncertainty.

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