UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -A protostar is not considered a star until it gets its energy from nuclear fusion instead of gravitational contraction. Gravitational contraction is the process of a cloud’s gravity overcoming its internal pressure and causing a collapse.
Detailed explanation-2: -Baby stars are called protostars. A protostar is a collection of gas and dust, and it marks the beginning of a star’s life. Some stars are born during a sudden explosion called a supernova-when a massive star gets too big and blows up before it can become a white dwarf.
Detailed explanation-3: -A protostar that never reaches this mass threshold will remain a hydrogen cloud, unable to put out light or heat in the same massive quantities as a normal star does, remaining dark and cold.