Imagine a world where humanity has not only gained the ability to travel and to populate space but has progressed even further than that. Humanity can now control and navigate multiple universes.

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 ...