If before this I tell story about nebula, nebula has many type such as Omega Nebula, Horsehead Nebula, Cat’s Eye Nebula, Crab Nebula and other name too. However, today I want to talk about Crab Nebula…

Crab Nebula is the shattered remnant of a massive star that ended its life in a supernova explosion. Nearly a thousand years old, the supernova was noted in the constellation of Taurus by Chinese astronomers in the year 1054 AD. 

Image Credit: NASA/JPL-Caltech/R. Gehrz (University of Minnesota)

This view of the supernova remnant obtained by the Spitzer Space Telescope shows an infrared view of this complex object. The blue-white region traces the cloud of energetic electrons trapped within the star's magnetic field, emitting so-called "synchrotron" radiation. The red features follow the well-known filamentary structures that permeate this nebula. Though they are known to contain hot gasses, their exact nature is still a mystery that astronomers are examining. 

The energetic cloud of electrons is driven by a rapidly rotating neutron star, or pulsar, at its core. The nebula is about 6,500 light-years away from the Earth, and is 5 light-years across.

credited to NASA...