They are gas stars and Neutron Stars . These stars are so big that it would take 10 of our suns to fill one up. These stars contains different atmo particles than in regular stars. Stars are alike us, they were born and die like us. They are born in nebulas.
Nebulas are gases that are floating in space.
When a star dies, the star becomes a black dwarf. They are very small. When a nebulas reaches a dwarf, the nebulas charges the dwarf with some kind of electric neural energy, like the energy in our brains. They charge up and the dead star becomes born again and soon die again. They have a choice when they are born.