GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stars are held together by gravity within galaxies.
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Stars are constantly forming and dying.
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Light moves at a constant speed through empty space.
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Most galaxies appear to be moving away from each other.
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Detailed explanation-1: -The Einstein universe This model of the universe became known as the Einstein World or Einstein’s static universe. This motivation ended after the proposal by the astrophysicist and Roman Catholic priest Georges Lemaître that the universe seems to be not static, but expanding.
Detailed explanation-2: -The simplest possible universe that can arise is one that is unchanging in time and uniform from place to place. This static universe was first proposed by Einstein in 1917 as a manifestation of the centuries-old prejudice that the universe as a whole be unchanging.
Detailed explanation-3: -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.