Question

How many years ago was the Big Bang Theory formed?

• A. 13.7 Billion year
• B. 13.7 Million year
• C. 1.37 Billion year
• D. 1.37 Million year

Answer 1

Answer:

A. 13.7 Billion year

• The Big Bang Theory suggests that our universe began as an infinitely hot and dense single point around 13.7 billion years ago

• This singularity expanded rapidly, and as it did, it cooled and formed subatomic particles, atoms, and eventually the stars and galaxies we see today.

• The cosmic microwave background radiation is thought to be the residual heat from this initial explosion