How much light is necessary to form a black hole
136949
Can a black hole be formed by electromagnetic radiation?
457
Could Dark Matter form black hole?
57773
About the speed of light and gravity
12267
(Almost) double light speed
90777
Can a black hole form due to Lorentz contraction?
61224
If you shoot a light beam behind the event horizon of a black hole, what happens to the light?
99437
Using a naked black hole as a mirror?
107647
The uncertainty principle and black holes
101884
Orange ring in a black hole image
9643
Black holes are transparent?
37941
Can light travel slower than the maximum?
145807
How can black hole increase its mass?
85135
Why singularity in a black hole, and not just "very dense"?
14212
Black holes in a head-on collision
89322
What is the radius of the event horizon?
114449
Gravitational slingshot of light using a black hole/massive object
116949
What gives mass to black hole?