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The mighty milky way. Black holes. A black hole has super gravity. A black hole will arrive every 10,000 to 100,000 years. A black hole is so powerful that nothing can escape its pull ,that is why it is so dark . It can destroy stars . nebula.
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Black holes • A black hole has super gravity. • A black hole will arrive every 10,000 to 100,000 years. • A black hole is so powerful that nothing can escape its pull ,that is why it is so dark . • It can destroy stars .
nebula • Inside a nebula gasses are push out , and gravity pulls inward • It pulls more and more dust and gas . It squeezes tighter and tighter into a big blob . • The blob heats up and begins to glow • All of that is because a star is being born .
Stars • The blue stars are hotter and red is cooler. • The blue stars are hotter then the sun. • A blue star lives for 4.6 millions years. • Almost none of the stars shine yellow.
Word wise • Black hole: an object in space with so much gravity . • Galaxy: a collection of stars ,gasses & matter held together by gravity. • Light years : the distance light can travel a year. • Nebula: a cloud of gasses and dust . • Supernova : an explosion that destroys stars