Question: why was there different amounts of matter and anti matter made in the big bang?

andy chapman answered on 17 Mar 2016:

That is a phenomenal question. Iw as only talking about this with my first year undergraduates the other day: The Baryon asymmetry.

We must also consider that we don’t know for sure that there are unequal amounts of matter and antimatter. It certainly seems like it to us, on earth, the moon and not much further than that but space is very very spacious and who knows, maybe there are vast regions of antimatter out there.

Other theories are based on either that the rate at which matter and antimatter form is different (presuming matter was formed faster at the big bang, hence there is more of it) or the rate at which antimatter and matter ‘decay’ or disappear are different (presuming matter decays more slowly, hence there is more of it). The reasons behind this involve some very gruesome maths that I don’t understand at all and are just theories…..

GREAT QUESTION!!!!!!