GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which statement is true about the Big Bang Theory? Choose all that apply.
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It should appear longer because of a redshift.
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the universe formed by the rapid expansion of space from a point 10-20 billion years ago
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The universe is expanding because light from faraway stars and galaxies is shifting towards the blue colors.
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When stars and galaxies move farther away from each other, we say that the universe is expanding and that this is due to a shift in the frequency of light coming from these light sources.
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Explanation:
Detailed explanation-1: -In short, the Big Bang hypothesis states that all of the current and past matter in the Universe came into existence at the same time, roughly 13.8 billion years ago. At this time, all matter was compacted into a very small ball with infinite density and intense heat called a Singularity.
Detailed explanation-2: -The Big Bang is not an explosion of matter moving outward to fill an empty universe. Instead, space itself expands with time everywhere and increases the physical distances between comoving points. In other words, the Big Bang is not an explosion in space, but rather an expansion of space.
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