Editing Black Holes (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
Black holes are defined by their '''Gravity''' and their '''Boundaries'''.

'''1. The Three Parts''':
* '''The Accretion Disk''': The "waiting room." Matter swirls around, getting hotter and brighter than millions of stars.
* '''The Event Horizon''': The "doorway." Once you cross this line, you need to move faster than light to get out. Since nothing can move faster than light, nothing gets out.
* '''The Singularity''': The "end." All the matter is crushed into a point of zero volume and infinite density.

'''2. Gravity and Time''':
Einstein's theory of General Relativity tells us that gravity "warps" spacetime. Near a black hole, space is so warped that "Down" becomes the only direction in time. If you watched a friend fall into a black hole, they would appear to slow down and eventually "freeze" at the event horizon, turning redder and redder (Gravitational Redshift). To ''them'', however, they would fall right through in a few seconds.

'''3. Types of Black Holes''':
* '''Stellar''': Formed from dying stars.
* '''Intermediate''': The "missing link" black holes (hundreds of solar masses).
* '''Supermassive''': The "monsters" at the heart of galaxies (like M87* or Sagittarius A*).
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