GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A formation of a galaxy
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An explosion of a huge star
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The outer portion of a black hole
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A type of star
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Detailed explanation-1: -A supernova is the colossal explosion of a star. Scientists have identified several types of supernova. One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight times larger than our Sun. As these stars burn the fuel in their cores, they produce heat.
Detailed explanation-2: -Iron atoms become crushed so closely together that the repulsive forces of their nuclei create a recoil of the squeezed core-a bounce that causes the star to explode as a supernova and give birth to an enormous, superheated, shock wave.
Detailed explanation-3: -For a star to explode as a Type II supernova, it must be several times more massive than the sun (estimates run from eight to 15 solar masses (opens in new tab)).