https://t.co/guWzD1R7Ia to Find Alien Civilizations – The Kardashev Scale https://t.co/aKXIGK8DQ0

https://t.co/guWzD1R7Ia to Find Alien Civilizations – The Kardashev Scale https://t.co/aKXIGK8DQ0

— brunurb (@brunurb) August 2, 2020

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