The fastest-spinning pulsar known to science, at present, rotates once every 1.4 milliseconds, that's 716 times per second or 42,960 a minute.
Until now, the slowest-spinning pulsar known had a rotation period of 8.5 seconds. This new pulsar, which is located in the constellation Cassiopeia some 5,200 light-years away from Earth, spins at the much slower rate of once every 23.5 seconds.
What makes the discovery even more unlikely is that the radio emission lasts just 200 milliseconds of the 23.5 second rotation period.
