Systems: In the Serpent Nebula Cluster – 2 shown
Mass relay systems the arrival points for the clusters they appear in; DLC systems are only available if you have installed the relevant content
Name
Whether there is a mass relay located in this cluster
Mass Relay
Whether there is a fuel system available for use in this system
Fuel Depot
The visitable planets and other satellites within this system; names in DLC planets are only available through downloadable content
Planets
What you have to do in order to be able to travel to this system; there may be other ways of accessing these systems beyond those listed
Available
BoltzmannDLC No No Wheeler, Bekenstein, Thooft, Veltman, Feynman After recruiting Kasumi
Widow Yes Yes Citadel Immediately