Phase Space technology is used in a variety of ways from phase inhibitors that delay the time it takes to from enemy ships to enter phase space, phase space cloaking that allows vasari scout ships to hide in phase space to perform spy missions, to Phase Space sensors that can help your empire trake down any enemy. Phase jumps can be made from different planets that head to one of your planets, and phasic missiles that the vasari use on all their ships that allows them to bypass enemy shielding and attack the hull directly inflicting heavy damage to the enemy ship. Most notably phase space technology is used by all race to allow faster-than-light travel by using their phase drives with which they enter phase space that allows your empire's ships to cover vast distinces from planet-to-planet