National Geographic: The Universe
  • Science → Astronomy → The Universe
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. The most widely accepted explanation is the big bang theory. Learn about the explosion that started it all and how the universe grew from the size of an atom to encompass everything in existence today.
0

Comments


Please sign in to write a comment.

Related Clips


Science → Astronomy → Spherical Astronomy
Science → Astronomy → Sun
Science → Astronomy → Solar Eclipse
Science → Astronomy → Solar System
Science → Astronomy → Universe
Science → Astronomy → Celestial Objects
Science → Astronomy → Solar System
Astronomy → Celestial Objects → Planets