An antimatter bomb is a "perfect" bomb, releasing 100% of the energy of its mass (e=mc^2) vs 0.4% to 1% compared to nuclear weapons.

With 1kg of antimatter you could wipe out all life on earth.

If you wanted to completely destroy earth (like break it aparty and send it flying into space in chunks of rock) you would need about 1/5 mt everersts worth of antimatter.

gn nosttr