What is a Pulsar?
Pulsars are types of neutron stars; the dead relics of massive stars. What sets pulsars apart from regular neutron stars is that they’re highly magnetized, and rotating at enormous speeds. Astronomers detect them by the radio pulses they emit at regular intervals.
Read more: http://www.universetoday.com/25376/pulsars/#ixzz2lIPV5Wtl
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