42

The 42 Achievement is earned for finding the center of the Galaxy.

Tips and Tricks
The quickest way to get to the center of the Universe is to stock up on Mega Health Packs and Mega Energy Packs and just make a run for it. It may take a few tries but is the only way to get there without starting a war with the Grox, or allying with the Grox, likely starting a war with everyone else.