Because there is usually nothing around the spot where the black hole is because the black hole "ate" everything.
there is no aswer to that question, because we know almost nothing about the black holes
A black hole? well scientist are not sure. Black holes is a theory, not proving to be true. But there could be.
No one has ever seen a black hole; so how do we know of them? Well, scientist's measured to movements of planets and saw them all moving toward a force. Now, we believe that there is something in the center of the galaxy that is pulling planets and stars towards it. Scientist's measured that this force is strong enough to decease anything that comes in contact with it. We call this force a "Black Hole". Why is it called a BLACK hole? Well, it is so strong that not even light can escape it.
They know because the effect the black hole has on other matter.
No the singularity is at the core of the black hole.
Don't know which black hole.
A black hole is a type of star with excessive gravity. Here are some sentences.The star was sucked into the black hole close by.A black hole will even absorb light.The scientist is studying a black hole.
technically, we do not know whether black holes are real. theoretically, they are completely possible. scientist believe that they have seen on but are not sure. if real, the largest one originate from larger stars
We know nothing about the conditions within a black hole, but it seems unlikely that a black hole could exist within a black hole, or even if this concept would have any meaning at all.
Since the nearest black hole is many light years away from Earth, it's impossible for a scientist to physically travel to a black hole to study it. Instead, they have to make do with observing the effects of black holes from Earth.
No, scientists have not sent unmanned spaceships into a black hole to gather information. Black holes are extremely dangerous environments due to their immense gravitational pull, making it currently impossible to retrieve information from inside a black hole using spacecraft. Scientists study black holes indirectly by observing their effects on surrounding matter and light.
Astronomers know because they have studied star patterns and placements and know when there has been a change between where there is a black hole and where there isn't one.