Detectable Civilizations in our Galaxy 1

Added by | 5 yearss ago

465

Learn more: http://www.khanacademy.org/video?v=YYEgq1bweN4
A framework for thinking about how many detectable civilizations are out there.

Channel: Education Channel

Related tags:

comments powered by Disqus









TerritorioScuola. Some rights reserved. Informazioni d'uso