Black Hole

A region of spacetime where gravity is so strong that nothing, not even light, can escape.

A black hole forms when matter is compressed within its Schwarzschild radius, creating an event horizon. General relativity predicts them, and they are now confirmed through stellar orbits, X-ray binaries, gravitational waves, and direct imaging of their shadows.

• Orbits of stars around Sagittarius A*
• Gravitational waves from black-hole mergers (LIGO)
• Direct images of M87* and Sgr A* (EHT)

• What happens to information that falls in?
• What is inside the event horizon?

• Related toThe Event Horizon
• Related toHawking Radiation
• Related toAccretion Disk
• Related toThe Schwarzschild Radius
• Related toGravitational Waves
• Depends onThe Event Horizon
• Depends onGravitational Singularity
• Depends onThe Schwarzschild Radius
• Depends onGeneral Relativity
• Related toThe First Image of a Black Hole
• Related toThe Milky Way's Central Black Hole
• Related toThe First Detection of Gravitational Waves
• Studied byStephen Hawking
• Studied byReinhard Genzel
• Studied byAndrea Ghez
• Studied bySubrahmanyan Chandrasekhar
• Related toSagittarius A*
• Related toM87*
• Related toSupermassive Black Hole
• Related toIntermediate-Mass Black Hole
• Related toStellar-Mass Black Hole
• Related toPrimordial Black Hole
• Associated withSchwarzschild Radius
• Associated withThe Ergosphere