Page 27 - COSMOS & H -Health - Science
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Have you ever wondered what happens to a star when it
Have you ever wondered what happens to a star when it
Have you ever wondered what happens to a star when it
explodes? Why does it explode? And many more questions
explodes? Why does it explode? And many more questions
explodes? Why does it explode? And many more questions
left unanswered. When stars explode, we experience a
left unanswered. When stars explode, we experience a
left unanswered. When stars explode, we experience a
certain phenomena known as a SUPERNOVA. This
certain phenomena known as a SUPERNOVA. This
certain phenomena known as a SUPERNOVA. This
phenomena may seem beautiful and visually pleasing for
phenomena may seem beautiful and visually pleasing for
phenomena may seem beautiful and visually pleasing for
the eyes but they are threatening to the planet.
the eyes but they are threatening to the planet.
the eyes but they are threatening to the planet.
What is a Supernova?
What is a Supernova?
What is a Supernova?
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A supernova is the colossal explosion of a
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A supernova is the colossal explosion of a
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star. Scientists have identified several types
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of supernova. One type, called a “core-
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collapse” supernova, occurs in the last stage
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collapse” supernova, occurs in the last stage
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in the life of massive stars that are at least
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eight times larger than our Sun. As these
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eight times larger than our Sun. As these
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produce heat. This heat produces pressure
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p p r o d u c e h e a t t . . T h i i s h e a t t p r o d u c e s p r e s s u r e
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that pushes outward against the forces of
that pushes outward against the forces of
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gravity that pull inward on the star. For
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gravity that pull inward on the star. For
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most of the life of a star, inward gravity and
most of the life of a star, inward gravity and
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star is stable. But as a star burns through its
star is stable. But as a star burns through its
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fuel and begins to cool, the outward forces
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fuel and begins to cool, the outward forces
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j j just seconds. This collapse produces the
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just seconds. This collapse produces the
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explosion we call a supernova.
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explosion we call a supernova. .
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