black hole.docx - Every star follows a life-death cycle. A...

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Every star follows a life-death cycle.A star is born out of dust and gas (hydrogen) clouds. This space where starsare born is called aNebula.Then the star reaches theYellow Dwarfstage and becomes aMainSequence star.Every 9 out of 10 stars in the known universe is a mainsequence star. Our sun is still in this phase.Following up is theRed Giantstage, which is basically a dying star. Whenthe star slowly runs out of hydrogen and helium, it grows almost 100–1000times in size. The star cools down in temperature and where it goes after thisdepends on the size of the star. This is where gravity takes over.Smaller stars becomewhite dwarfstars which are incredibly dense. Theyfurther cool down to become black dwarf stars. On the other hand, stars thatare at least 8–20 times more massive than our sun explode into violentlybeautiful celestial fireworks calledSupernovae.After the explosion what remains is the core of the star. This can either
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Term
Spring
Professor
Salman
Tags
Supernova, White dwarf

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