Soon the carbon burning begins and it then becomes a supernova. There are three types of type 1 supernovae. They are caused by carbon detonation. They leave no stellar remnant. Most of the time when a star explodes what is left over is called supernova remnants.
Supernova remnants are the remains of a supernova explosion that exploded a long time ago.
A typical remnant is at the very least a few light-years across. Sometimes if a supernova does not leave a remnant, a invisible object called a black hole may be left behind. Black hole have such a great gravitational pull, that even light can't escape it. In some cases, absolutely nothing is left behind after the star explodes. It has been discovered that Supernovae are partly responsible for the creation of life on earth.