Miracle of the Lightningstorm is a Mod wich basicly aim for more Fun and adds over hundrets of new Units, Buildings and will improve the Gameplay Mechanichs.
The Space Center is a Tier 2 Building, here you research each Phase of the Space Lunch for the Orbital Rocket Satelite. Also you can Unlock here different Kind of Rockets for you Super Weapons
So, it launches rockets into space so astronauts can have a 0 Gravity lunch?
Yea, like sandwich. :)
Anyway as you could read it's used as a Superweapon and Techcenter.