There was something about an antimatter explosion, the malice of planting the bomb where they had.

Then the screen went blindingly bright as the intensity of the antimatter explosion lit the night.

"If you try to tractor it like that, you could cause an antimatter explosion."

This wasn't going to be very accurate, she knew, but an antimatter explosion didn't require great accuracy to do damage.

You don't care if we're causing matter- antimatter explosions in another universe?

I'm thinking you'd need an antimatter explosion anyway, though admittedly a smaller one.

Just now they were seeing the matter antimatter explosions that had occurred four hours before.

Another antimatter explosion obliterated a vast section of the universe.

With antimatter explosions, there was a hard wave of gamma rays, but they were effective only at a limited distance.

"The readings indicated a deliberate sequence of events designed to end in the antimatter explosion that we witnessed."