You cost this when you go on [[Galactic Expedition|galactic expedition]]s. This can be collected by [[research]]ing.
Different difficulty on the galactic expeditions has different value, all shown in the table below.
{|class="wikitable"
! Difficulty
! Galactic Coordinate
! [[Rocket fuel]]
! Success chance -- Base value
! Damage on Failure ([[Space station parts]])
|-
| I (1) || [[galactic coordinate i|Galactic Coordinate I]] || 100 || 80% || 100
|-
| II (2) || [[galactic coordinate ii|Galactic Coordinate II]] || 200 || 60% || 200
|-
| III (3) || [[galactic coordinate iii|Galactic Coordinate III]] || 300 || 40% || 300
|-
| IV (4) || [[galactic coordinate iv|Galactic Coordinate IV]] || 400 || 20% || 400
|-
| V (5) || [[galactic coordinate v|Galactic Coordinate V]] || 500 || 0% || 500
|}
Every level of expeditions all cost same value of coordinate (1) and [[rocket]] (1).