Astronomers Astonished by 'Monstrous' Star Explosion

[jidar]

Originally Posted by Delano

I am not positive but I think scientists collide atoms at an extreme rate of speed and it creates anti matter for a very short period of time that scientists can study. The engine looks like a huge underground racetrack that they send the atoms around on and collide in this chamber that has some very sensitive machinery to observe the results.

A good guess but no. What you're describing is a super collider, which is used to create anti matter.
An anti-matter engine would be an engine that is running on the energy produced by anti-matter fuel interacting with regular matter. There is no such thing as a man made anti-matter engine, but it's one way to describe the stuff going on in one of these massive supernovas.