131 | Avi Loeb on Taking Aliens Seriously
The possible existence of technologically advanced extraterrestrial civilizations — not just alien microbes, but cultures as advanced (or much more) […]
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astronomy
Episode 11: Mike Brown on Killing Pluto and Replacing It with Planet 9
Few events in recent astronomical history have had the worldwide emotional resonance as the 2006 announcement that Pluto was no
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