Neutrino Dark Matter

Of the 4 Types of Neutrinos existing, the right handed sterile neutrinos are now strong candidates for the missing mass solution to dark matter.
The guitar nebula fast rotation rate is a classic example of pulsars kick started thousands of kilometers per second into spin by sterile neutrinos from supernova explosions.

Experiments at Fermilab will be able to confirm whether the decay of sterile neutrinos were responsible for the ionisation of Hydrogen in creating the first stars.