: Most physicists believe the universe was born approximately 13.8 billion years ago .
What Is the Big Bang? | NASA Space Place – NASA Science for Kids The Big Bang Theory image
Sheldon’s attempts to "bring order to the universe" through rigid planning. : Most physicists believe the universe was born
: Key proofs include the Cosmic Microwave Background (CMB) and the observed expansion of space. The Big Bang Theory image
Use these captions if your image shows the birth of the universe, cosmic inflation, or galaxy clusters.
: The universe expanded from an extremely small, hot, and dense state and has been cooling ever since.
: The idea that the universe began as a single point, then expanded and stretched to its current size.