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The main proponent of the Oumuamua is an extra-solar object is Harvard astronomer Avi Loeb and there's a great interview with him where he discusses his reasons
by billbrown 8y ago
The main proponent of the Oumuamua is an extra-solar object is Harvard astronomer Avi Loeb and there's a great interview with him where he discusses his reasons for his conclusions in a very accessible manner:
https://after-on.com/episodes-31-60/040 https://after-on.com/episodes-31-60/040