Plot: 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

PBS Space Time - Season 2022 - What If Humanity Is Among The First Spacefaring Civilizations? (Episode 30)
Episode Aired On:
Wednesday, November 9 2022
2 years ago
Wednesday, November 9 2022
2 years ago
Genres: Documentary, Talk