Lets talk a bit about Neutron stars..
This is an exotic type of Neutron Star known as a Magnetar. Its Magnetic field is so strong, if it came close enough to us, it would wipe clean every credit card on Earth.
The other type of Neutron Star is a Pulsar. This is an extremely small (15 km in diameter, about the size of a small city) and compact star. Its so dense, that a spoonful of its matter would weigh more than the moon. A notable feature of these types of stars is there rapid spinning, and electromagnetic jets shooting out from there north an south poles. Consequently, these stars act light "stellar lighthouses". Not only that, they are the best "clocks" in the universe as they have constant spin which gives them a constant pulse (a rhythmic sound detected by astronomers, caused by the rapid spin of the star).