Answer:
Neutron star
Step-by-step explanation:
neutron star is formed from the collapsed core of a very giant star, that has a total mass that range from 10 and 25 possibly. They stars are the smallest and densest stellar objects except from black holes and hypothetical white holes, quark stars, and strange stars.
They are produced from the supernova explosion of big star and gravitational collapse that presses the core past white dwarf star density to that of atomic nuclei.