You don't move areas, you scan for new planets. You can research better scanning in order to do this; usually people will research an entire tier of scanning tech, then put five of the ones they just researched on their ship and do a "scanning blitz," using all their energy for scanning until they get to a low chance of success, or until they run out of energy, in which case they usually wait for more. This can be done on the Planets tab, simply click the "Scan for new Planets" button and you will see your chance of success (based on your scanning and the amount of planets in your database) and there will be a button to do a scan, which will cost 5 energy.