↩ 🔵 🔵 🔵 ❪✺ᵢ❫ Black Hole Concepts ○ ❪✺₁₍₀₎❫ Astronomical Class Corridors ○ ❪✺₁₍₀₎❫ High-Energy Astrophysics Class Corridors ○ ❪✺₁₍₀₎❫ Relativistic Class Corridors ○ ❪✺₁𝑖❫ Classes of Black Holes ○️ Astrophysical Jet ○꠹