Type II supernovae are believed to occur when the cores of massive stars collapse.
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Q81: Even in degenerate matter, pressure depends on
Q82: A white dwarf cools slowly into a
Q83: Stars less massive than 0.4 solar mass
Q84: Planetary nebulae are sites of planet formation.
Q85: Red dwarfs (have/have not) yet died or evolved
Q87: The Sun will eventually become a supernova.
Q88: Synchrotron radiation occurs when high-speed electrons move
Q89: A Type II supernova produces a planetary
Q90: Stars with ˜0.4-4 solar masses swell into
Q91: No known white dwarf has a mass
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