From an observational standpoint, what is a pulsar?


Quick Answer

According to astronomy class notes from the University of Tennessee at Knoxville, a pulsar is a special kind of star cluster formed when two stars spin rapidly around each other, and flash their light in a way that is visible from earth. It is not well-known how pulsars work.

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Full Answer

Scientists believe that the strong magnetic fields associated with the stars are responsible at least partially for the speed at which they spin around each other. If a beam of a pulsar hits Earth, the light from the pulsar appears to pulse on and off. There are several hundred known pulsars.

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