Schwarzschild radius
Black hole boundary
The Schwarzschild radius is the radius at which an object's mass, if compressed within that boundary, would create a black hole—a region where gravity is so intense that nothing, including light, can escape.
For any mass, there exists such a critical radius: Earth's is about 9 millimeters; the Sun's is roughly 3 kilometers.
At the Schwarzschild radius lies the event horizon, the point of no return for anything falling inward.
Black hole's edge
- general relativityGravity as curved spacetime
- spacetime curvatureDistortion of dimensional fabric
- escape velocitySpeed to overcome gravity
- gravitational collapseInward fall from gravity
geodesic · relativistic effects · time dilation · Einstein · neutron star · gravitational lensing
Black hole's edge
- singularityPoint where values explode
- gravitational collapseInward fall from gravity
- escape velocitySpeed to overcome gravity
- quantum gravityTheory merging spacetime and subatomic physics
event horizon
Black hole's edge
- general relativityGravity as curved spacetime
- spacetime curvatureDistortion of dimensional fabric
- escape velocitySpeed to overcome gravity
gravitational collapse · geodesic · relativistic effects · time dilation · Einstein · neutron star · gravitational lensing
event horizon
Black hole's edge
- singularityPoint where values explode
- gravitational collapseInward fall from gravity
- escape velocitySpeed to overcome gravity
quantum gravity · point of no return · spaghettification · supermassive
solar mass
Astronomical weight standard
- proportionalityScaling relationship between quantities
- gravitygravity, graviton, gravity well, gravitational pull, gravity wave
- Black Holesevent horizon, singularity, supermassive black hole, event horizons, singularities
- relativityrelativity, spacetime, general relativity, relativity theory, time dilation
- Astronomy Unitsastronomical unit, light-year, light year, parsec, pc
- cosmologybig bang, Big Bang, big bang theory, universe, dark matter
- Formulaschemical formula, quadratic formula, empirical formula, area formula, volume formula