One-Session Class: Oumuamua

No, it's not a greeting for Hawaiian cows! Oumuamua is presumably a rock that flew by Mercury, Venus, and Earth in October 2017. In November 2018, two astrophysicists from Harvard published a paper suggesting it might not have been a rock nor have been on a random course. We'll examine their contentions.

Bob Zeman is a retired physicist with varied interests. He last led Exosemiotics: How to Talk to E.T. at Osher. He is looking forward to the fun a class of scientific speculation offers.