How can black hole increase its mass?
7809
How can anything ever fall into a black hole as seen from an outside observer?
32981
What is exactly the density of a black hole and how can it be calculated?
90028
Formation of supermassive black holes
85135
Why singularity in a black hole, and not just "very dense"?
57305
Relativistic Mass and Gravity
107647
The uncertainty principle and black holes
46399
How does increasing the tension on a string affect the density?
63346
How can the universe expand if there is gravitation?
144274
Why mass & energy bend spacetime?
55971
Why does the (relativistic) mass of an object increase when its speed approaches that of light?
156197
How much energy does lowering an object into a black hole generate?
14212
Black holes in a head-on collision
6531
Can black holes grow via accretion of dark matter particles?
17619
How does rest mass become energy?
39399
Will free-fall object into black hole exceed speed of light $c$ before hitting black hole surface?
135375
A Hollow Black Hole
123571
A change in the gravitational law