Bacteria could appear more than 100 million years ago in the aftermath of a supernova explosion. And escaped from the nucleus of a celestial body the microorganisms could unwind throughout the galaxy.
Physics from the technical University of Munich revealed traces of material which threw out an ancient supernova in fossilized bacteria magnetosome. Calculating the dates of the fossils, scientists assume that the material falls on the Earth in the period from 2.7 1.7 million years ago.
There is a perception that the size of the supernova was supposed to be more Sun not less than ten times. Deposits spread across the milky way, among them there were the iron atoms. This substance is the characteristic half-life of 2.6 million years, because of this it has survived to the present day. Individual bacteria during the movement through space are capable of changing the magnetic properties, and create entire fields.
Thus, there are nebulae observed in any system with a telescope.
