GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Spectrum
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Universe
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Galaxy
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Big Bang Theory
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Detailed explanation-1: -A galaxy is a giant, spinning object made of gas, dust, and stars held together by gravity. Galaxies come in different shapes and sizes and can contain billions of stars. Most occur in groups that are also held together by gravity.
Detailed explanation-2: -A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias (), literally ‘milky’, a reference to the Milky Way galaxy that contains the Solar System.
Detailed explanation-3: -A huge system of stars is called a galaxy.
Detailed explanation-4: -A large group of stars, nebulas, gases, dust particles, and planets that are held together by gravity is called a galaxy.