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Stars: Birth And Death (Part 2)

15 minutes 10 seconds

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Gravity rules the life cycle of stars. During the Red Giant dying stage in the life of an average size star, its outer layers are blown off in vast clouds of dust and gas called "nebulae" that contain hydrogen, oxygen, and nitrogen. Gravity crushes the remaining atoms into a remnant core called a white dwarf. The gravity of giant stars-10 to 20 times larger than average-will, at the end of their life in a supernova explosion, crush together even mutually repulsive protons and electrons, leaving a remnant rotating core of neutrons (i.e., a pulsar). Also explains how stars 20 to 100 times average size collapse into a core so dense that its gravity doesn't even allow light to escape (i.e., a black hole).

Media Details

Runtime: 15 minutes 10 seconds

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Flat surface with arching lines of light emanating from localized points. Caption: They originate and terminate at the local magnetic poles,
Stars: Birth And Death
Episode 1
13 minutes 14 seconds
Grade Level: 7 - 12
Large sphere of glowing light dwarfs object labelled as Earth's orbit around sun. Caption: larger than Earth's orbit around the Sun,
Stars: Birth And Death
Episode 2
15 minutes 10 seconds
Grade Level: 7 - 12