In a celebration of the 100th anniversary of the "Great Debate" between
Harlow Shapley and Heber Curtis which argued on the scale of the Universe,
Michigan Tech have posted submissions from astronomers on the topic of "2020: Life in the Universe Debate".
Quote:
Originally Posted by Wikipedia
The Great Debate, also called the Shapley–Curtis Debate, was held on 26 April 1920 at the Smithsonian Museum of Natural History, between the astronomers Harlow Shapley and Heber Curtis. It concerned the nature of so-called spiral nebulae and the size of the universe; Shapley believed that distant nebulae were relatively small and lay within the outskirts of Earth's home galaxy, while Curtis held that they were in fact independent galaxies, implying that they were exceedingly large and distant.
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Debate Question: How will humanity first discover extraterrestrial life?
First released answers here :-
https://phy.mtu.edu/debate/debate100th.html