What classification is given to the spectacular explosion marking the end of a massive star's life?
Answer
Type II supernova
The violent explosion marking the final demise of a massive star following core collapse is classified spectroscopically as a Type II supernova. This classification is specifically characterized by the unmistakable presence of hydrogen lines observable in the light spectrum emitted during the explosion. This event is responsible for dispersing elements created during the star's life and synthesizing elements heavier than iron, such as gold and uranium, in the chaotic, neutron-rich conditions of the blast itself.

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