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Understanding the search for civilizations beyond Earth
This documentary delves into the scientific and theoretical search for intelligent life beyond Earth, examining how humanity ...
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, ...
The Kardashev scale is based on how much energy a civilization uses. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What might we find: little ...
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What if advanced alien civilizations already exist?
Scientists continue to explore one of humanity’s biggest questions: are we alone in the universe? This documentary examines the modern search for intelligent alien life, from advanced telescopes and ...
In his 1964 paper, "Transmission of Information by Extraterrestrial Civilizations," famed astrophysicist and radio astronomer Nikolai Kardashev addressed the types of transmissions (and at what ...
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