GENERAL KNOWLEDGE

Detailed explanation-1: -Our universe was born about 13.7 billion years ago in a massive expansion that blew space up like a gigantic balloon. That, in a nutshell, is the Big Bang theory, which virtually all cosmologists and theoretical physicists endorse.

Detailed explanation-2: -The scientists studied an image of the oldest light in the universe to confirm its age of 13.8 billion years. This light, the “afterglow” of the Big Bang, is known as the cosmic microwave background and marks a time 380, 000 years after the universe’s birth when protons and electrons joined to form the first atoms.

Detailed explanation-3: -Astronomers have determined that our universe is 13.7 billion years old. How exactly did they come to this precise conclusion?