The Fastest Pulsar in the Universe

The fastest pulsar we have ever seen is 16 kilometers in radius, and surface of it is moving at a quarter of the speed of light. Every second, this entire mountain sized blob of nuclear matter spins 700 times around. The other amazing thing about these pulsears is that they are precisely timed. Each one hask its own unique finger print. And you can also use them to navigate around the galaxy.