What is the life cycle of a star bigger than the sun?

Answer 1

A star larger than the Sun, often referred to as a massive star, begins its life in a nebula, where it undergoes nuclear fusion, converting hydrogen into helium. As it exhausts its hydrogen fuel, it expands into a red supergiant and eventually undergoes fusion of heavier elements. Once it can no longer support fusion, the core collapses, leading to a catastrophic supernova explosion, while the outer layers are expelled. The remnant core may become a neutron star or, if massive enough, collapse further into a black hole.