They use X-Rays from the stars being sucked into them.
Scientists predict that there are over one million black holes in our galaxy
Since you can't see a black hole, scientists use a method called gravitational lensing to detect black holes. Since black holes warp space-time, the light that travels near a black hole is bent, like how a magnifying glass warps the object a little at the edges. Scientists look for unusual distortions of light caused by this effect to look for black holes.
Black holes are a bit hard to detect, so I am pretty sure that not all black holes in this galaxy are known - and I suspect there is not even a decent estimate. But you can expect there to be several.
no. white holes are actually an object predicted by scientists to exist on the other side of a black hole. it is predicted to spit out objects that entered a black hole.
I am not sure it is a problem. The evidence for black holes is quite strong.I am not sure it is a problem. The evidence for black holes is quite strong.I am not sure it is a problem. The evidence for black holes is quite strong.I am not sure it is a problem. The evidence for black holes is quite strong.
Black holes do exist - they are just VERY difficult to detect.
You can't use spectrometers to detect black holes. Telescopes are the only way to detect them.
Scientists can detect black holes by using x-rays and gamma rays. Black holes still can release matter, and black holes give off a lot off x and gamma rays.
They are invisible.
Yes, there is such thing as a black hole, they are very mysterious and very, very, very hard to see. But, scientists don't try to "look" for black holes, they detect them with radars that search for vibrations in space. Scientists look for these vibrations because the black holes give off this energy with gigantic force that pulls you into the center. It has so much energy and force that it vibrates. So, yes there are such things as black holes.
Steven Hawking is researching black holes right now.
Yes, black holes are known and regarded by many scientists, astronomers, and physicists.
Scientists predict that there are over one million black holes in our galaxy
Black holes
Since you can't see a black hole, scientists use a method called gravitational lensing to detect black holes. Since black holes warp space-time, the light that travels near a black hole is bent, like how a magnifying glass warps the object a little at the edges. Scientists look for unusual distortions of light caused by this effect to look for black holes.
It is not known how many black holes exist. One of the main reasons is that, if matter is not actually falling into the black hole, it is impossible to detect.
Black holes are a bit hard to detect, so I am pretty sure that not all black holes in this galaxy are known - and I suspect there is not even a decent estimate. But you can expect there to be several.