A new video from the science-focused YouTube channel Kurzgesagt breaks down the different stages of advancement that an alien civilization could theoretically undergo. And each one of the broadly ...

The Kardashev Scale, first proposed by Russian astronomer Nikolai Kardashev, measures the technological advancement of civilizations by the amount of energy they can harness and use. In its original ...

In context: Radio waves from distant galaxies are too faint to provide meaningful data for potential space observations. However, a sufficiently advanced alien civilization could harness energy in ...

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