A dense core composed mainly of neutrons, left behind after a supernova explosion. Neutron star. A neutron star is an incredibly dense and compact object formed from the remnants of a massive star after it explodes in a supernova.
Imagine trying to fit all your clothes into an overstuffed suitcase after a long vacation. Just like how you compress every piece of clothing tightly together to make it fit, a neutron star is the incredibly dense core that remains after a massive star explodes in a supernova, squeezing neutrons closely together. In both cases, you have a situation where a large volume is condensed into a much smaller space; your suitcase is the neutron star, and the densely packed clothes are akin to the neutrons, both representing how much can be crammed into a limited space.
