How is one black hole is larger than another?

  • Context: High School 
  • Thread starter Thread starter htapps
  • Start date Start date
  • Tags Tags
    Black hole Hole
Click For Summary
SUMMARY

Black holes vary in size due to their mass, which determines the radius of their event horizon. While theories suggest that black holes collapse into zero size, current understanding indicates that this may not accurately describe the phenomena occurring within them. Instead, discussions about black holes must focus on measurable aspects from outside their event horizons, as the internal conditions remain largely speculative and poorly understood.

PREREQUISITES
  • Understanding of black hole physics
  • Familiarity with the concept of event horizons
  • Basic knowledge of mass-energy equivalence
  • Awareness of current astrophysical theories
NEXT STEPS
  • Research the relationship between mass and event horizon size in black holes
  • Explore theories regarding the internal structure of black holes
  • Study the implications of general relativity on black hole behavior
  • Investigate observational techniques for measuring black hole properties
USEFUL FOR

Astronomers, astrophysicists, and students interested in black hole research and the fundamental principles of the universe.

htapps
Messages
1
Reaction score
0
If black holes crush things into infinite density, shouldn't they all be the same size?
 
Astronomy news on Phys.org
Black hole size is expressed in terms of its event horizon, which is proportionate to its mass.
 
(Note that when I say "inside a black hole," I mean "inside the event horizon.")

To elaborate, nobody really knows what on ... in the Universe happens inside a black hole, our current theories say they should collapse into 0 size, but some (a lot, from what I gather) think this just means our theories no longer apply perfectly in these situations.

So trying to describe stuff in terms of what's going on inside a Black Hole is going to be pretty much pointless, so we have to describe stuff in terms of what can be measured from outside the black hole.
 

Similar threads

High School How Can Black Holes Vary in Size if They Are Singularities?
  • · Replies 20 ·
Replies
20
Views
4K
High School Gravitational effects of a small black hole passing your body
  • · Replies 1 ·
Replies
1
Views
1K
High School Analogue Black Holes: Disposal?
  • · Replies 2 ·
Replies
2
Views
2K
High School I Need Help on Understanding Some Basic Astrophysics / Sand Clock Universe
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad The initial density of an object and its compression into a black hole
  • · Replies 17 ·
Replies
17
Views
6K
Stargazing Dark matter and its effect on the orbit of stars
  • · Replies 13 ·
Replies
13
Views
3K
High School AI Enhanced image of M87 black hole
  • · Replies 0 ·
Replies
0
Views
2K
High School Ultramassive Black Hole (UMB), 30 billion solar masses?
  • · Replies 4 ·
Replies
4
Views
3K
High School How would physics change if Planet 9 were a primordial black hole?
  • · Replies 3 ·
Replies
3
Views
2K
High School What is the definition of a black hole?
  • · Replies 27 ·
Replies
27
Views
6K