What Do Alien Civilizations Look Like? The Kardashev Scale
Kurzgesagt - In a Nutshell · Season 8 · Episode 10
The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there.
Episode Details
Air date, runtime, timezone, and episode position.
Season
8
Episode
10
Air Date
02/Aug/2020
Air Time
—
Runtime
12 min
Overview
Episode summary.
The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there.
Episode Navigation
Move between previous and next episodes.