Red+Supergiant

===A red supergiant star is like any old typical star. It is the more later part in its life when hydrogen has almost ran out and due to this the star starts to look like it is swelling. The difference with a red giant and a red supergiant is just the size. The only reason that a star will become red supergiant is that its size was rather larger than the normal star (eg. our sun) at its earlier stage of life.===

===The life of a red supergiant won't be as long. It averages from at least a few hundered thousand years to a few million. As after a supernova a red giant star would become a white dwarf, a red supergiant how ever will instead become either a nebula or a black hole.===