#stellar-evolution

#stellar-evolution

molecular gas clouds that are contracting and fragmenting, leading to protostars and young stellar objects, becoming full-fledged stars with protoplanetary disks around them, conventional stars burning through their fuel with their own fully-formed planetary systems, stars evolving into subgiants, giants, and even supergiants, stars dying in planetary nebulae, supernovae, and other life-ending events, and stellar remnants of now-extinct stars like white dwarfs, neutron stars, and black holes.

Scientists for the first time have spotted the insides of a dying star as it exploded, offering a rare peek into stellar evolution. Stars can live for millions to trillions of years until they run out of fuel. The most massive ones go out with a bang in an explosion called a supernova. Using telescopes that peer deep into space, researchers have observed many such explosions. The cosmic outbursts tend to jumble up a dying star's layers, making it hard for scientists to observe the inner structure.