Fulgora had an ancient civilisation. Their planetary defence remains in orbit to welcome you. Conquer their space manufactory to learn how to make your own versions.
Hello again, the defence robot shows up in the stronger explosion research under rocket dmg, as well as the weapon shooting speed again under the rocket. The good news is that they don't receive those bonuses from player research since they are in another force. :)
I never expected those rockets to show up under the technology bonuses, and I'm glad the force separation meant they didn't get too powerful! Ammo type has been moved to the new fulgoran-spaceship-rocket category in 0.2.5, and hidden from Factoriopedia to be in line with other enemy types.