How are pulsars made in space?

Pulsars are formed from the remnants of massive stars that undergo supernova explosions at the end of their life cycle. When a star with sufficient mass exhausts its nuclear fuel, it collapses under its own gravity, resulting in a neutron star. If this neutron star has a rapid rotation and a strong magnetic field, it emits beams of electromagnetic radiation from its magnetic poles. As the star rotates, these beams sweep across space, creating the characteristic pulsing effect observed from Earth.