Pulsar

At http://phys.org/print387113979.html … we have the beating heart of the Crab Nebula …    the Hubble space telescope has peered deeply into the Crab Nebual and the NASA image is thought to show a pulsar, the remnants of a supernova explosion. Glowing gas is shown in red and forms a swirling dance while inside a blue glow is thought to represent radiation produced by electrons spiraling at near the speed of light.