What is the life cycle of a super-giant?

The life cycle of a supergiant star begins with its formation from a massive molecular cloud, leading to the ignition of nuclear fusion in its core. As it exhausts hydrogen, it expands into a red supergiant, fusing heavier elements. Eventually, the core collapses when iron accumulates, resulting in a supernova explosion. The remnants may form a neutron star or a black hole, depending on the initial mass of the supergiant.