A Black hole merger is a phenomenon in which two Black holes come together and combine into one larger Black hole. This is a result of the gravitational pull between the two Black holes.
Suspected Black hole mergers are detected through the observation of gravitational waves. These are ripples in space-time that are created when two massive objects, such as Black holes, come together and merge.
Some Black hole mergers are only suspected because the detection of gravitational waves can be difficult to confirm. It requires precise measurements and multiple observations to confirm a Black hole merger.
No, suspected Black hole mergers do not pose any threat to Earth. The gravitational waves created by these mergers are incredibly small by the time they reach Earth and have no impact on our planet.
Studying suspected Black hole mergers can help us better understand the behavior of Black holes and the laws of gravity. It can also provide insight into the evolution of galaxies and the formation of the universe.