Neutron stars is a type of star made up mostly of neutrons held together by a large force of gravity. It is a star with a very small volume and a huge mass. Generally, the diameter of a neutron star does not exceed 30 km and the mass can reach about 2 or 3 times the mass of the Sun.
How it was born
A neutron star arises from the collapse of the star's core and the termination of nuclear fusion reactions.
Particular characteristics
The gravitational force of neutron stars is so high that elements such as protons and electrons come into contact and merge into neutrons. The density of neutron stars is very high, so high that it is not yet reproducible even in the laboratory. The rotation time is also of particular importance: the duration can last up to tens of seconds, but in some cases it can even reach milliseconds!