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During the life cycle of massive stars, when carbon fuses to form neon and magnesium.
The most important factor is the stars mass.
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The life cycle of all stars is pretty similar from birth to late in their life - that's when the rest of their life cycle can vary dramatically. Small and medium-sized stars tend to be the longest-lived stars (our Sun is a typical example), and they end their life by expanding, cooling, and then blowing off their outer shell while their nucleus collapses to a "White Dwarf".
Mass and size
During the life cycle of massive stars, when carbon fuses to form neon and magnesium.
hydrogen fusion
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I do not know if it is for homework stop cheating!!
I do not know if it is for homework stop cheating!!
The "star life cycle" refers to stars. Earth is not a star.
Nobody "invented" it, the life cycle of stars happens naturally.
In the nebula!
Stars go through stages like birth, main sequence, red giant, and death, which can last millions or billions of years. In comparison, humans have a much shorter life cycle, typically living for decades. Both stars and humans undergo changes over time and eventually cease to exist.
The smaller a star is, the longer its life cycle.
the answer is a protostar