White Dwarfs Supernovae Massive Stars Red Giants Star Clusters Population III Stars Red Supergiants Star Formation Protostars Mass Loss Young Stars Star-Planet Interactions Heavy Elements Neutron Stars Star Age Substellar Objects Dying Stars Gas and Dust Ejection Star Lifecycle Chemical Elements Chemical Composition Star Types Triple Star Systems Compact Stars White Dwarf Stars Binary Stars Supernova Mechanisms OB Stars Exoplanets Sun-like Stars Red Giant Stars Convection Processes Aging Stars Red Giant Phase White Dwarf Formation