Actual stellar evolution
Age limit (Type II supernova) results in creation of white dwarf (invisible, X-ray emitter) -- what conventional astronomy incorrectly labels a "black hole" -- and cloud of low speed (1-x) 3D spherically-distributed matter, intermediate speed (2-x) 2D rings, and ultra high-speed (3-x) 1D polar jets.
Outer layers of supernova star explode in space. Inner core explodes in time (inward in space), being confined, and atoms are accelerated past the "speed of light."
Over time gravity re-forms the exploded star. As spacial gravity re-condenses the low-speed matter (heating and condensing in space), temporal gravity does the same with the white dwarf causing it to cool and expand in space (heat and contract in time). Given time, both stars re-enter the main sequence... this time the former white dwarf is hanging out for the next thermal/age limit destruction (Type I or Type II supernova).
Edit: just like heating up a bar of metal... first a dull red glow as it gets hot, then orange, then yellow, then yellow-white (Sol's stage in evolution... at least 3rd gen now), then white-hot, then blue-hot, then it fractures (supernova).
P.S. Saturn, Jupiter, Uranus, Neptune are closer to stars than planets