It would be GC's version of the quarry. Almost every big mod has it's own version. BC, Thaumcraft, Minefactory Reloaded, why not Galacticraft and a space themed quarry type machine?I mean in the fact that you could always just place a quarry on the surface, and it would require a lot less hassle. Then again, space drills are wayyyy cooler than boring old quarries.
And yeah lasers are cool. Space Lasers are even cooler!