What is antimatter?

Antimatter has fuelled many a supernatural tale, but it's also fascinating all by itself. Many people think of it as an "out there" theoretical idea, unaware that it is actually being produced every day. What's more, research on antimatter is actually helping us to understand how the universe works!
To find out more we visited Donal Hill, particle physicist from the University of Oxford Department of Physics to ask: What is antimatter?
Listen here to find out…