Here's every resource or upgrade you can collect from planet scanning, listed by galaxy and planet:
SIGURD'S CRADLE
SKEPSIS
Watson - Javelin Missile Launchers
Between Crick and Mass Relay - Wreckage
DECORIS
Laena - Salvage
South between second and third ring - Wreckage
ARCTURUS STREAM
ARCTURUS
Arcturus Station - Intel from battle of Arcturus
West of Themis - Wreckage
EULER
East of Fermi - Wreckage
GEMINI SIGMA
HAN
Underneath Mass Relay - Wreckage
Mavigon - Salvage
MING
Below Antiropus - Wreckage
Parag - Alliance Cruiser Nairobi
HADES GAMMA
ANTAEUS
Just underneath Mass Relay - Wreckage
Trebin - Salvage
PLUTUS
Nonuel - Special Ops Team Zeta, 103rd Marine Division
DIS
Right of the sun - Wreckage
Klensal - Salvage
FARINATA
North of the sun - Wreckage
Juntauma - Alliance Frigate Agincourt
CACUS
Chohe - Salvage
Far North-West - Wreckage
KITE'S NEST
HARSA
Verush - Weapon Upgrade Kit
Left of Verush - Wreckage
Khar'shan - Artifact: Pillars of Strength
UNTREL
Adek - Salvage
West of Adek - Wreckage
ARGOS RHO
HYDRA
South of the sun - Wreckage
Canrum - Haptic Optics Array
PHOENIX
Pinnacle Station - Turian Spec Ops Team
Intai'sei - Artifact: Fossilized Kakliosaur
North-West of Intai'sei - Wreckage
GORGON
Camaron - Advanced Power Relays
APIEN CREST
CASTELLUS
South of Fiax, East of Nius - Wreckage
Digeris - Artifacts: Banner of the 1st Regiment
GEMMAE
Pheiros - Turian 79th Flotila
South of Pheiros - Wreckage
West of Pheiros - Wreckage
AETHON CLUSTER
ARU
Irune - Artifacts: Book of Plenix
West of Irune - Wreckage
Cherk Sab - Volus Fabrication Units
ESORI
Solu Paolis - Volus Dreadnought Kwonu
East of the sun - Wreckage
SATU ARRD
Nalisin - Volus Engineering Team
South-West of the sun - Wreckage
NURA
Oma Ker - Volus Intelligence Archives
North of the sun - Wreckage
ATTICAN BETA
HERCULES
Eletania - Interferometric Array
South-East of the sun - Wreckage
THESEUS
Feros - ExoGeni Scientists
North-west of the sun - Wreckage
THE SHRIKE ABYSSAL
XE CHA
Zada Ban - Salvage
South of the sun - Wreckage
URLA RAST
Talis Fla - Artifact: Prothean Obelisk
North-West of the sun - Wreckage
VALHALLAN THRESHOLD
RAHEEL-LEYYA
North-East - Wreckage
PAZ
Garvug - Artifact: Prothean Data Drives
East of the sun - Wreckage
MICAH
Elohi - Emergency Fuel Pods
Farlas (East, in asteroid belt) - Element Zero Convertor
South-East of the sun - Wreckage
HADES NEXUS
HEKATE
South-West of Mass Relay - Wreckage
Asteria - Alliance Frigate Hong Kong, Alliance Fifth Fleet
HOPLOS
Kopis - Artifact: Obelisk of Karza
Far West - Wreckage
SHEOL
Gei Hinnom - Artifact: Prothean Sphere
PAMYAT
Dobrovolski - Alliance Friage Leipzig, Alliance First Fleet
South of the sun - Wreckage
MINOS WASTELAND
FORTIS
Pietas - Salvage
South of Mass Relay - Wreckage
EXODUS CLUSTER
UTOPIA
South of Eden Prime - Wreckage
Zion - Prothean Data Files
ASGARD
Borr - Remains of Reaper Destroyer
Tyr - Alliance Naval Exploration Flotilla
Terra Nova - Alliance Cruiser Shanghai
Loki - Alliance Spec Ops Team Delta
North-East of the sun - Wreckage
SILEAN NEBULA
KYPALADON
Hanalei - Dr. Jelize
TEYOLIA
Nevos - Artifact: Rings of Alune
Quirezia - Salvage
East of the sun - Wreckage
PHONTES
Dekuuna - Artifact: Code of the Ancients
Oltan - Elcor Flotilla
East of Lenamund - Wreckage
NAHUALA
Hyetiana - Serrice Guard
South-West of Agessia - Wreckage
LOROPI
East of Wreckage - Wreckage
Yasilium - Armali Sniper Unit
NIMBUS CLUSTER
PELION
South of Aitis - Wreckage
Trategos - Intact Reaper Weapon
Just North-East of Trategos - Wreckage
Just North-West of Sthenia - Wreckage
AGAIOU
Carcosa - Artifact: Library of Asha
KALLINI
South of Pania - Wreckage
NUBIAN EXPANSE
DAKKA
Pragia - Research Data from Pragia
South-East of the sun - Wreckage
QERTASSI
Norehsa - Alliance Frigate Trafalgar
North of Norehsa - Wreckage
KALABSHA
Yamm - Alliance Marine Recon Unit, 103rd Marine Division
North-East of the sun - Wreckage
HOURGLASS NEBULA
OSUN
Erinle - Salvage
South-West of Erinle - Wreckage
FARYAR
Alingon - Shadow Broker Starship Tech
Next to Alingon - Wreckage
SOWILO
Hagalaz - Shadow Broker Support Team
North of the sun - Wreckage
PLOITARI
Zanethu - Terminus Freighters
ATHENA NEBULA
PARNITHA
Tevura - Asari Cruiser Cybaen
ORISONI
Egalic - Asari Research Ships
East of the sun - Wreckage
TOMAROS
South of Niagolon - Wreckage
Pronoia - Asari Cruiser Nefrane
VERNIO
Polissa - Artifact: Hesperia Period Statue
North-West of the sun - Wreckage
IALESSA
West of the sun - Wreckage
Trikalon - Asari Engineers
ISMAR FRONTIER
AQUILA
Metaponto - Advanced Biotic Implants
***Credit goes to:
http://www.nowgamer.com/cheats/mass-effect3/1271880/mass_eff...