Which of these events is NOT possible?

A) low-mass stars swelling up to produce planetary nebulae
B) red giants exploding as Type II supernovae
C) close binary stars producing recurrent novae explosions
D) white dwarfs and companion stars producing recurrent Type I supernova events
E) a white dwarf being found in the center of a planetary nebula


D

Physics & Space Science

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A typical neutron star is more massive than our Sun and about the size (radius) of ________

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Fill in the blank(s) with correct word

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