
Sign up to save your podcasts
Or
Learn about the 5 types of alien civilizations that can exist, as predicted by Nikolai Kardashev's alien scale, and where earth lies in the cosmic evolution chart, all in just 90 seconds!
4
22 ratings
Learn about the 5 types of alien civilizations that can exist, as predicted by Nikolai Kardashev's alien scale, and where earth lies in the cosmic evolution chart, all in just 90 seconds!