Life Cycle of Stars

The Life Cycle of Stars

1) Initially form from clouds of GAS and DUST

2) Gravity makes the clouds come spiralling in, gravitational energy turns into heat energy and the temp rises

3) When the temp is high enough, hydrogen nuclei do nuclear fusion to form helium nuclei, giving out heat and light (a star is born). Enters a long stable period where the heat created by nuclear fusion provides an outward pressure to balance the inward pressure from gravity - MAIN SEQUENCE STAR. Can last millions of years

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