How Old Could the First Alien Civilizations Be?

An exploration of how old the first alien civilizations could be, or how early in the history of the universe were planets possible.

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https://www.youtube.com/eventhorizonshow

Music:

Cylinder Five by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

Source: https://chriszabriskie.com/cylinders/

Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

Source: https://chriszabriskie.com/cylinders/

Видео How Old Could the First Alien Civilizations Be? канала John Michael Godier