GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How our planets and moons formed
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How our universe began
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How the sun turns hydrogen into helium
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How fast light travels through space
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Detailed explanation-1: -The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began. But what caused this explosion in the first place is still a mystery.
Detailed explanation-2: -Today, the consensus among scientists, astronomers and cosmologists is that the Universe as we know it was created in a massive explosion that not only created the majority of matter, but the physical laws that govern our ever-expanding cosmos. This is known as The Big Bang Theory.
Detailed explanation-3: -The Big Bang is a scientific theory about how the universe started, and then made the groups of stars (called galaxies) we see today. The universe began as very hot, small, and dense, with no stars, atoms, form, or structure (called a “singularity").