Well, perhaps we could, in theory, either simulate, recreate, fabricate, or generally speaking "make" a new one (magnetic field). And, of course, by "augment its atmosphere" I meant, basically, trying to replicate that of Earth's, so life from here could live there, if you don't count the newfound closeness to the sun to be a problem.
...Then again, we can't even get there yet. We'd have to start terraforming now to get there any time in the near, relatively speaking, future... barring any massive leaps in technology, that is, as we can basically only get to the moon with ease, more or less. We'd need something similar to Wright's "Interstellar Drive," or at least more powerful propulsion engines. Would still take a great deal of time just to get there, considering the distance.
...But, back on point, merely using this solar system as a bit of an explanation as to how the T, B, and P scores in the game reflect reality, instead of colonizing anything and everything that's not a star or other non-planetary "thing.'