LogFAQs > #949502369

Rods of God are an actual military thing, whether or not it's actually implemented I'm not sure, but, it shows up occasionally in scifi media.
Basically you have a tungsten rod in orbit, and then drop it directly on the target. About the same explosive capability as a nuclear weapon without the radioactive fallout and the precision of dropping a big stick from orbit with a computer (aka very good), plus, unlike atomic weapons, it won't fail to explode on impact.

The crazy nutter shit though is another thing, but, rods from god is an actual thing. It's also called orbital bombardment.