PBS Space Time

What If Humanity Is Among The First Spacefaring Civilizations? (2022x30)

Air date: Nov 09, 2022

Half of the universe is filled with expansionist alien civilizations, and it’s only a matter of time before they’ll reach us. OK, that sounded a little sensationalist. But it’s also the conclusion of a recent astrophysics paper. Let’s see how they figure this, and whether we should take it seriously.