What are pulsars?
When you purchase through nexus on our site , we may earn an affiliate commissioning . Here ’s how it works . A pulsar is a peculiar kind ofneutron star , which is the ultra - dense leftover core of a massive star . Pulsars give out beam of radiation that sweep out in circle as the pulsar twisting . When those beams flash over Earth , we see them as regular , repeat pulse of radio emission ....