B) We don't know, because its lifetime is longer than the age of the universe.
C) It collapses inward, and the whole star becomes a black hole.
D) It explodes.How does a massive star normally end its life?D) It explodes.How does a massive star normally end its life?
Massive stars ARE usually short-lived and are known to undergo supernovae. At 4 to 10 solar masses, a neutron star is formed in the aftermath of a supernova. Greater masses result in black holes.
From Wikipedia -- "In general, compact stars of less than 1.44 solar masses 鈥?the Chandrasekhar limit 鈥?are white dwarfs, and above 2 to 3 solar masses (the Tolman-Oppenheimer-Volkoff limit), a quark star might be created; however, this is uncertain. Gravitational collapse will usually occur on any compact star between 10 and 25 solar masses and produce a black hole."How does a massive star normally end its life?D) It explode in a supernova. This explosion may leave a remnant the diameter of Earth (White Dwarf), or ~10km across (neutron star) or even smaller and denser (black hole). The more massive the star, the denser the remnant.How does a massive star normally end its life?
D - It explodes as a supernova. C is more rare than supernova explosions.
It's also possible that it ends its life by shooting itself with a handgun, but this is rare.How does a massive star normally end its life?Massive stars are typically short-lived and normally end its existence in an explosion called a super nova.How does a massive star normally end its life?
It could be c or d. Sometimes it becomes a black hole and othetimes it doesn't. I think certain stars depends on what happens.
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