GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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10 billion light years
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200 million light year
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34 billion light year
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None of the above
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Detailed explanation-1: -The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies each containing millions or billions of stars. Our native planet Earth and the solar system is also a part of one of such numerous galaxies i.e. Milky Way.
Detailed explanation-2: -The radius of the observable universe is therefore estimated to be about 46.5 billion light-years and its diameter about 28.5 gigaparsecs (93 billion light-years, or 8.8×1026 metres or 2.89×1027 feet), which equals 880 yottametres.
Detailed explanation-3: -Size: 94 Billion Light Years. The most distant objects in the Universe are 47 billion light years away, making the size of the observable Universe 94 billion light years across.
Detailed explanation-4: -This means the unobservable Universe, assuming there’s no topological weirdness, must be at least 23 trillion light years in diameter, and contain a volume of space that’s over 15 million times as large as the volume we can observe.