16 Astonishing Facts About the Universe — by Dr. Neil deGrasse Tyson
In this video, Neil deGrasse Tyson goes over 16 fascinating facts about our universe — from the equivalence principle to the idea of aliens sending radio waves to Earth, how our universe might actually be inside a black hole, why life might only need liquid to exist, and what the green lights in the nights sky really are. If you liked the video, please feel free to like and subscribe to help push the video out. Stay curious!

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