Raw naquadah enhanced nuclear explosions
The Goa'uld-busters are a type of weapon developed by the Tau'ri.
Goa'uld Busters are stated to be modified Mark 12A warheads inside of a missile, enhanced with a small amount of raw Naquadah. Their original yield was stated to be 375 kilotons, while the enhanced version is equal to a 1,000 megaton nuclear warhead, or 1,000,000 kilotons; the previous Tau'ri record is 58 megatons from a modified 100 megaton munition. This makes the Goa'uld Buster almost 2,500 fold the strength of the original warhead, and this with the mere addition of a small amount of raw Naquadah. The weapon was also fitted with the same material used by Earth stealth aircraft, making it invisible to Radar, but not to Ha'tak sensors. The Goa'uld-buster maximum speed is 15,000 miles/hour.
When Apophis attempted to invade Earth, two Goa'uld-buster warheads were launched to destroy the two orbiting Ha'tak motherships. However, they failed to penetrate the protective energy shields of the ships and the missiles themselves were eventually destroyed. (SG1: "The Serpent's Lair")