Protoplanetary Disks Brown Dwarfs Supernovae Protostars Herbig-Haro Objects Massive Stars Galactic Evolution Rogue Worlds Nebulae Gas Clouds Galaxy Evolution James Webb Space Telescope Supermassive Black Holes Molecular Clouds Orbital Dynamics Chemical Enrichment Milky Way Star Clusters Life in the Universe Shock Waves Dust in Galaxies Gas Dynamics Planet Formation Giant Stars Black Hole Activity Magnetic Fields 30 Doradus Cosmic Dust Dwarf Galaxies Galaxy Morphology Supernova Mechanisms Young Stars Gravitational Interaction Thermonuclear Reactions Galactic Structures Supernova Frequency