[Fyron]

Siirenias said:
"By the way...as far as questions go...where on the tech tree are halo planets, stellar spheres, and planetary gravity bombs (for planet making)?"

What's a "halo planet?" Some reference to a lame console game? There are ringworlds and sphereworlds, which come from Astrophysics 2 > Stellar Manipulation (along with all other stellar object creation/destruction techs).

Siirenias said:
"No, no...I need to acquire it from enemy ships or intelligence."

You cannot own any tech that has a racial requirement for which you do not possess the trait. Note that unique ruins techs work the same way; have to colonize the planet yourself.