Supermassive Black Holes Sagittarius A* Tidal Disruption Events Primordial Black Holes Intermediate-Mass Black Holes Intermediate Mass Black Holes Black Hole Jets Event Horizon Telescope Accretion Disks Binary Star Systems Dormant Black Holes Centaurus A Black Hole Formation 1ES 1927+654 Imaging Techniques Massive Black Holes Cosmic Jets Active Galactic Nuclei Jets Astrophysical Jets Porphyrion Quasi-Periodic Eruptions Stellar Events Black Hole Systems Triple Systems Formation Theories V404 Cygni Black Hole Triples Stellar Companions Star Formation Triple Black Hole Systems LID-568 Gravitational Lensing Light Echoes Cosmic Phenomena Stellar Mass Black Holes Gamma-Ray Emissions Gamma-Ray Flares M87 Gamma-ray Emissions Gamma Rays Binary Stars Formation and Growth Galaxy NGC 5084 X-ray Astronomy White Dwarfs Research Discoveries White Dwarf Stars Gaia BH3 M87* Galaxy Clusters Event Horizon Quasars Plunging Region Galactic Evolution Formation of Black Holes Stellar Evolution Stellar-Mass Black Holes Spaghettification Binary Systems Kilonovas Accretion Discs Stellar Consumption Stellar Interactions Gas Dynamics Galaxy Formation Sound Waves Jet Systems Radiation Jets Jet Streams Plasma Jets Jet Structures