Black dwarf stage
As the white dwarf continues to cool, its surface becomes less and less luminous until it becomes a cold, dark, carbon-rich, burned-out sphere floating in space. Even as it cools, the black dwarf no longer contracts. This is because its atoms are so dense that they are in the electron degenerate state and cannot be squeezed together any further. Therefore most solar-sized stars end up as dense, cold, dark, Earth-sized objects, perpetually cooling in space. such is the fate of most solar-sized stars—to cool to near 0 K and float invisibly in space, waiting for some chance encounter with another star, black hole, or object that could possibly give its atoms a new life.
Continue reading here: Evolution Of Highmass Stars
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