Canonical · Big Hypotheses · Astrophysics
The Kardashev Scale
Nikolai Kardashev · 1964
"A civilization's technological advancement can be measured purely by the amount of energy it is able to harness and utilize."
If we find alien life, how will we know how advanced they are? Russian astrophysicist Nikolai Kardashev proposed a simple scale based on energy consumption: Type I (Planetary), Type II (Stellar), and Type III (Galactic).
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