GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ever since the universe began, the universe has been
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expanding
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contracting
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stays the same size
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None of the above
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Explanation:
Detailed explanation-1: -Since the Big Bang, the universe has been expanding. In the early years, everything was made of gas. This gas, mostly hydrogen and helium, expanded and cooled. Over billions of years, gravity caused gas and dust to form galaxies, stars, planets, and more.
Detailed explanation-2: -The universe has not expanded from any one spot since the Big Bang-rather, space itself has been stretching, and carrying matter with it.
Detailed explanation-3: -Before the hot Big Bang, our Universe was dominated by energy inherent to space, or to the field that drives cosmic inflation, and we have no idea how long inflation lasted for or what set up and caused it, if anything.
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