History of "The Big Bang"
The observation of galaxies moving away from ours at great speeds in all directions inspired scientists to create the Big Bang theory creation of the universe.
from Big History Project
Key Facts In This Video
The universe is approximately 13.8 billion years old. (3:23)
The Big Bang Theory states the universe is extremely efficient, and expanded originally at a fantastic rate. (6:53)
Cosmic background radiation is like the "fingerprint of the universe" and can be heard in radio waves. (9:12)