GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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groups of stars
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the sudden start of an expansion
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the universe is still expanding
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None of the above
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Detailed explanation-1: -Around 13.7 billion years ago, everything in the entire universe was condensed in an infinitesimally small singularity, a point of infinite denseness and heat. Suddenly, an explosive expansion began, ballooning our universe outwards faster than the speed of light.
Detailed explanation-2: -The big-bang theory of the universe is derived from Albert Einstein’s general theory of relativity and the idea that the universe expanded from a miniscule dense collection of energy called a singularity. There was no bang, just a vast expansion of extremely condensed material.
Detailed explanation-3: -Based on large quantities of experimental observation and theoretical work, the scientific consensus is that space itself is expanding, and that it expanded very rapidly within the first fraction of a second after the Big Bang, approximately 13.8 billion years ago. This kind of expansion is known as “metric expansion".
Detailed explanation-4: -This breakthrough idea later became known as the Big Bang! The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded.