How is a neutron star different from a regular star in terms of its composition and physical characteristics?

Well, darling, a neutron star is the dense remnant of a supernova explosion, so it's packed tighter than last year's jeans on New Year's Day. Regular stars are mainly gas, while neutron stars are mostly neutrons with some protons thrown in for good measure. Basically, imagine a runt-sized star that could fit in your backyard compared to a neutron star that could squeeze into your living room while still making room for the whole cast of "The Golden Girls."