Can a black hole absorb another black hole?

Answer 1

Theoretically ablack holecan merge with another black hole if they come close enough to each other.

Note: There is no real empirical evidence that Black Holes have grown or shrunken. While there are observations of the release of energy consistent the annihilation of matter, these observations are the representative behavior of conditions upon the Event Horizon of the Black Hole and not the inner works of the Black Hole itself. If fact our best evidence ever was provided with the observations of the three-telescope interferometry. The astrophysicists described their findings as a ring of hot dust that marks the transition from a more-distant mixture of gas and dust in a toroidal (doughnut-shaped) structure, to a gaseous disk closer to the black hole. The dusty part, he said, is interesting because it dominates the infrared emission of active galactic nuclei and can be easily observed. However there are no measurements relevant to growth such as increased density relative to its static size or increased size relative to its static density. And the latest consensus is that there is not a relevant relationship between the observable size of the accumulated bulge about the Black Hole and the size of the Black Hole itself.
Rather what has been observed is that there are many Black Holes of varying sizes and behaviors. And from these collective observations scientists have conjectured upon the possible evolution of Black Holes upon the principles following the same pattern of gravitational accretion as normal matter. Problem is that there is no real empirical evidence that normal matter exists at the center of a Black Hole. Even stellar growth is more relevant to the behavioral state of nuclear reactions within the star, relative to its energy versus mass density. Other observations are more problematic - i.e. small Black Holes with a large amount galactic matter and large Black Holes with a small amount of galactic matter. These anomalous observations give rise to theories on the Black Hole's condition even unto its creation.

Answer 2

We don't know. We've never seen a "white hole", and the math is fuzzy as to what characteristics such an object might have.

Answer 3

Yes! but once a black hole sucks the other, it will be bigger.

Answer 4

Yes, a black hole can believe it or not, eat another black hole.

Answer 5

Yes, two black holes can combine/absorb each other.

Answer 6

They can also combine.