In Mass Effect 3, the galaxy is a very big place, and it got full of hidden rewards. You can freely travel using the Normandy to scan and pick up rewards on certain planets. Each star system requires more than one scan to find all the rewards, and too many scans will garner unwanted interest from the Reapers. When the giant Reaper ships appear, make a run for it or its an instant game-over. Otherwise, make your scans and push forward to uncover credits, War Assets, and even special upgrades.
Planet Scanning Guide
Note: To Find New Star Clusters, youll need to wander around the Citadel and listen to incidental dialogue from NPCs for tips. Also, new Star Clusters will appear after every major mission.
Star Cluster: Hades Gamma
System: Antaeus
Planet: Trebin Reward: Credits.
System: Cacus
Planet: Chohe Reward: Credits.
System: Plutus
Planet: Nonuel Reward: 103rd Marine Division Update.
System: Farinata
Planet: Juntauma Reward: Alliance First Fleet Update.
System: Dis
Planet: Klensai Reward: Credits.
Star Cluster: Sigurds Cradle
System: Skepsis
Planet: Watson Reward: 50 War Assets.
System: Decoris
Planet: Laena Reward: Credits.
Star Cluster: Apien Crest
System: Castellus
Planet: Digeris Reward: Artifact.
System: Gemmae
Planet: Pheiros Reward: 40 War Assets.
Star Cluster: Kites Nest
System: Vular
Planet: Vana Reward: Artifact.
System: Harsa
Planet: Verush Reward: Intel.
Planet: KharShan Reward: Artifact.
System: Untrel
Planet: Adek Reward: Credits.
Star Cluster: Exodus Cluster
System: Utopia
Planet: Zion Reward: 75 War Assets.
System: Asgard
Planet: Tyrr Reward: 75 War Assets.
Planet: Borr Reward: Intel.
Planet: Terra Nova Reward: 40 War Assets.
Planet: Loki Reward: 35 War Assets.
Isma Frontier
System: Aquila
Planet: Metaponto Reward: Intel.
Minos Wasteland
System: Fortis
Planet: Pietas Reward: Credits.
Shrike Abyssal
System: Xe Cha
Planet: Zada Ban Reward: Credits.
System: Urla Rast
Planet: Talis Fia Reward: Artifact.
Arcturus Stream
System: Arcturus
Planet: Arcturus Station Reward: Intel.
Krogan DMZ
System: Dranek
Planet: Rothla Planet: 25 War Assets.
Gemini Sigma
System: Han
Planet: Mavigon Planet: Credits.
System: Ming
Planet: Parag Reward: Alliance Third Fleet Update.
Aethon Cluster
System: Aru
Planet: Cherk Sab Reward: 45 War Assets.
Planet: Irune Reward: Artifact.
System: Satu Arrd
Planet: Nalisin Reward: 50 War Assets.
System: Esori
Planet: Sola Paolis Reward: 50 War Assets.
System: Nura
Planet: Oma Kar Reward: Intel.
Attican Beta
System: Hercules
Planet: Eletania Reward: 45 War Assets.
System: Theseus
Planet: Feros Reward: 50 War Assets.
