Supermassive Black Holes Accretion Disks Active Galactic Nuclei Hawking Radiation Formation Theories Formation Formation of Black Holes Intermediate-Mass Black Holes Overmassive Black Holes Galaxy Mergers Feedback Mechanisms Galaxy Interaction Big Bang Theory Effects on Galaxies Galaxy Dynamics Star Formation Black Hole Feedback Neutron Stars Types of Black Holes Gravitational Waves Eddington Limit Stellar-mass Black Holes Galactic Nuclei Formation and Behavior Intermediate Mass Black Holes Energy Sources Matter Interaction Exoplanets Tidal Disruption Events Primordial Black Holes Galaxy Centers Stellar Interactions Galactic Mergers Accretion Discs Thermodynamics Spin Dynamics Self-Gravitating Systems Positron Jets Cosmic Winds Active Galaxies Mass Ratios Mass Distribution Observational Techniques Research Challenges Black Hole Formation Supernovae Cosmic Phenomena Galaxy Characteristics Formation of Galaxies Accretion Processes Galaxy Formation
Head-on geometry creates extreme relativistic beaming that resolves the long-standing brightness–slow-motion puzzle.