How High-Mass Stars Evolve
They consume their fuel even faster than intermediate-mass stars. They die more quickly and violently. The core heats up to much higher temperatures. Heavier elements for by fusion, and the star expands into a super giant. Eventually, iron forms at the core and cannot release energy through fusion, and the core collapses violently, shock waves travelling throughout the star. The outer portion of the star explodes, producing a supernova. The heaver elements are ejected into the universe and form planets and other bodies.