Anti-matter fountains

[Gry]

I just came across a documentary where I learned that anti-matter actually seems to be produced in what's being referred to as 'anti-matter fountains' that is to be found close to the centre of the galaxy. There seems to be a great deal of unsolved mysteries surrounding the phenomena, though, so I was wondering if any of you guys have any knowledge of the matter?

 

[Iamrishi]

According to the theory, matter and antimatter were created in equal amounts at the big bang. By rights, they should have annihilated each other totally in the first second or so of the universe’s existence. The cosmos should be full of light and little else.
And yet here we are. So too are planets, stars and galaxies; all, as far as we can see, made exclusively out of matter. Reality 1, theory 0.