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A region in space where gravity is so intense that nothing, not even light, can escape from it

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Fact: It would take a supermassive black hole 10100 years to fully disappear

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A massive explosion that occurs when a star dies

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Fact: A supernova can radiate more energy than the sun will in its entire lifetime

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A star that suddenly increases in brightness, and then fades over time

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Fact: One of the oldest-known records of a nova was from 1437

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A star that is much larger and more luminous than other stars with the same color

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Fact: Giant stars can be hundreds of times larger than the sun, with some having volumes up to 10 million times greater

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A group of stars that are incredibly massive and bright

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Fact: Supergiants can contain 8-200 times the sun's mass.

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What typical stars become after they use up theyre fuel

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Fact: White dwarfs can have temperatures hotter than 100,000 kelvin

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A star that is fusinh hydrogen in the core and staying steady with pressure and gravity.

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Fact: 90% of stars in the universe are main sequence stars including our sun

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A graph to show how stars are classified using heat and brightness.

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Fact: The shows how luminosity and heat are tied together in stars

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A cloud of gas and dust that is known as the birthplace of stars.

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Fact: The largest Diffuse Nebulae isthe Orion Nebula which is about 20 light years.

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Fact: They are a major heating source of space gas and produce many heavy elements.

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Bright glowing, growing layers of gas and dust that form around a dying star

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Fact: The gas in the planetary nebulae is said to be around 10,000 degrees Celsius

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Nebulae are clouds of gas and dust in space

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Fact: Nebulae can be so massive, they span several lightyears.