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 ...

It has been more than sixty years since Dr. Frank Drake (father of the Drake Equation) and his colleagues mounted the first Search for Extraterrestrial Intelligence (SETI) survey. This was known as ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Human civilization has achieved some incredible things ...

Before you submit an error, please consult our Video Help page. PBS Space Time is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, ...

For decades, scientists engaged in the Search for Extraterrestrial Intelligence (SETI) have probed the galaxy for signs of ...