see: https://www.sciencedaily.com/releases/2018/09/180928131441.htm
The breakthrough research is outlined in "An Interstellar Synthesis of Phosphorus Oxoacids," authored by UH Manoa graduate student Andrew Turner, now assistant professor at the University of Pikeville, and UH Manoa chemistry Professor Ralf Kaiser in the September issue of Nature Communications.
According to the study, phosphates and diphosphoric acid are two major elements that are essential for these building blocks in molecular biology. They are the main constituents of chromosomes, the carriers of genetic information in which DNA is found. Together with phospholipids in cell membranes and adenosine triphosphate, which function as energy carriers in cells, they form self-replicating material present in all living organisms.
Comet 67P C-G.
However, according to Quantum FFF Theory plasma jets coming out of Comets, are assumed to be created by internal micro black holes, which produce a continuous stream of protons and electrons around the BH nucleus.
see: Evidence for Dark Matter Black Hole Based Plasma, Dust and Ice Production Inside Comets Like 67P,C-G. and the Growing Earth.
http://vixra.org/abs/1410.0039
Even Enceladus seems to harbout water ? producing micro black hole nuclei.