u_nationalgeographic

How old is the universe, and how did it begin? Throughout history, countless myths and scientific theories have tried to explain the universe's origins.

How old is the universe, and how did it begin? Throughout history, countless myths and scientific theories have tried to explain the universe's origins.

Video Credits to: u/nationalgeographic
< Previous Fossils are echoes of an ancient past—and they can help paint a picture of the planet's history. Countless stars dot the night sky. Learn how these celestial objects form, how they are classified by brightness and temperature, and what happens when they die. Next >
Download Video   View Source & Comments