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Loading contentHow we stay in touch with spacecraft billions of kilometres away — the giant antennas, tracking stations, signal bands, and navigation systems that carry every command and every discovery. The infrastructure layer beneath nearly every space program.
The deep-space and near-Earth communication networks — NASA's DSN, ESA's Estrack, the Near Space Network, and the national and commercial networks.
8 entriesThe deep-space ground complexes with giant antennas — Goldstone, Madrid, Canberra, and their counterparts worldwide.
12 entriesNear-Earth network ground terminals, including the TDRS gateway at White Sands and high-latitude stations.
4 entriesThe ground dishes and spacecraft antennas that carry deep-space signals, from 70 m giants to laser terminals.
8 entriesThe radio and optical bands used for deep-space communication — S, X, Ka, UHF, and laser.
5 entriesHow spacecraft are located and pointed — radiometric tracking, Delta-DOR, optical and autonomous navigation.
7 entriesOptical (laser) communication — the frontier of deep-space data rates, from DSOC to LCRD.
4 entriesWhere deep-space communication is heading — optical links, antenna arraying, and onboard atomic clocks.
5 entriesThe deep-space and near-Earth networks, from NASA's DSN to the national and commercial services.
China's deep-space tracking network, operated for CNSA, with large antennas at Jiamusi (66 m) and Kashgar (35 m) in China and a station in Argentina. It supports China's lunar (Chang'e) and planetary (Tianwen) missions.
A growing set of commercial providers — such as KSAT, SSC, and Goonhilly — that offer deep-space and near-Earth ground-station support on a service basis, augmenting the government networks as mission traffic grows. NASA's Near Space Network increasingly buys commercial services alongside its own antennas.
NASA's international array of giant radio antennas — the backbone of deep-space communication and navigation. Three complexes spaced about 120° apart in longitude (Goldstone, Madrid, Canberra) keep any distant spacecraft in view as Earth rotates, providing tracking, telemetry, command, and radiometric navigation for missions across the Solar System and beyond.
The European Space Agency's global tracking-station network, including deep-space antennas at New Norcia (Australia), Cebreros (Spain), and Malargüe (Argentina). It provides communication and navigation for ESA's interplanetary missions and cross-supports partner agencies.
ISRO's deep-space network, centred on the 32 m and 18 m antennas at Byalalu near Bengaluru. It provided tracking and communication for the Chandrayaan lunar missions and the Mars Orbiter Mission (Mangalyaan).
Japan's deep-space tracking network, run by JAXA/ISAS, centred on the Usuda Deep Space Center in Nagano (a 64 m antenna) and the newer 54 m Misasa antenna. It supported the Hayabusa asteroid missions and Japan's other deep-space probes.
NASA's network for missions near Earth — out to roughly the Moon and the Sun–Earth Lagrange points — formed by merging the ground-based Near Earth Network with the space-based Space Network (the TDRS relay satellites). It provides direct-to-ground and relay links, and now hosts optical (laser) communication demonstrations.
Russia's deep-space communication facilities, operated by Roscosmos, with large antennas at Ussuriysk in the Far East and historically at Bear Lakes and Yevpatoria (Crimea). It descends from the Soviet deep-space network that supported the Luna, Venera, and Mars probes.
The radio and optical bands used to carry data across the Solar System.
How spacecraft know where they are and where they point.
Range and Doppler tracking from the ground network.
Very-high-precision angular position using two stations and a quasar.
Onboard imaging of the target against the stars to refine approach.
Real-time onboard navigation without waiting for Earth.
Determining spacecraft attitude from star patterns.
Sensing rotation and acceleration to propagate attitude.
Onboard atomic timekeeping to enable one-way navigation.
The networks track spacecraft across the Solar System — from the Voyagers to Psyche.
Each network, station, antenna, signal band, and navigation and timing system is a first-class knowledge-graph entity resolved through the Scientific Data Engine. The Deep Space Network, Estrack, and Near Space Network reuse the platform's existing network entities — enriched, never duplicated — and mission-support links reuse the existing spacecraft. Capabilities and antenna sizes come from NASA/JPL, ESA, and JAXA; signal light-time is real physics (distance ÷ the speed of light), never a fabricated fixed delay. Unknown values are left blank. See source quality.