Aura

An aura is an area effect that modifies some attribute of ships (positively or negatively) that pass within a certain range. Auras may be generated by nebulae, suns, planets, moons, or field generators equipped on bases, player ships or AI. They are displayed around the ship as Neuro_Tweak_Icons.

Some auras only affect enemies or squad mates, while other auras oscillate between different effects over time.