A massive star's last resting place is a neutron star.

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The most massive neutron star has been discovered close to the black hole boundary, according to scientists. [{ "selector": ".fdsod-a", "duration": "500ms", "fill": "forwards", "delay": "1500ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

As a consequence, the core collapses in on itself, becoming a tiny, compact, and very dense stellar object known as a neutron star. [{ "selector": ".idszz-a", "duration": "500ms", "fill": "forwards", "delay": "1500ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Unlike a white dwarf star, which is the consequence of the collapse of a much smaller star, this is not the same thing. [{ "selector": ".zigax-a", "duration": "500ms", "fill": "forwards", "delay": "1000ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

The cores of all stars are powered by nuclear fission, in which lighter atoms are fused together to generate heavier ones.

These gases expand and attract material into the star's core at the same time as it maintains its core temperature, keeping the star hot and stable.

Recent research suggests that astronomers may have found the most massive neutron star yet identified, a pulsar that is practically on the verge of its theoretical maximum mass.