What is a Black Hole ?

         In our universe, Every massive star life has different stages in its life cycle. These states are basically derived in four stages. These are Massive Star, Red Supergiant, Supernova, and Blackhole (or) sometimes turns into a Neutron Star. But, The last stage of life cycle is generally known as the Black Hole. This transformation of the star into black hole happens when a star losses all its energy. This energy is actually obtained from a nebula which is in the elemental form such as gases like Hydrogen (H) and Helium (He). In the last stages, the gases are completely consumed by the star and the star comes to zero energy state and turns into most mysterious body " Blackhole". This Blackhole contains only the fundamental force gravity in a very infinite state, i.e., we actually cannot measure this Gravity. This black hole starts to pull all the objects which comes near it to an infinitely very large distance i.e., we cannot actually imagine where these objects actually go. Blackhole has the capacity to even suck largely sized stars into it and releases some kind of radiation. In this Blackhole, There is a state named Singularity where the sucked objects infinitely travel into this portion i.e., the object becomes infinitely smaller when it enters into this singularity if the body is able to resist in this region.