• Question: What do you think happend to all the anti-matter after the Big Bang?

    Asked by patrykkazimierczak to Adam on 12 Nov 2013.
    • Photo: Adam Murphy

      Adam Murphy answered on 12 Nov 2013:

      Hey, Great question!

      It’s a big puzzle as to why there’s not more anti-matter about the place!

      There are two main ideas as to why there isn’t.
      The first is that maybe there are huge antimatter galaxies floating in space, with antimatter stars and planets in them, they’d look the same to us, so it would be really hard to see them.

      The other is that there are little particles called mesons, and some of these are able to switch between matter and antimatter. Some scientists think
      that maybe they prefer being matter, so that’s why there’s so much more.

      I don’t know which one is right, but I like the idea of antimatter galaxies with antimatter aliens in them!

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