Atmosphere
About 78% nitrogen, 21% oxygen, and 1% other gases.
Acquiring mission data
Apex AndromedaApex AndromedaAcquiring mission data
Planet 03 · Terrestrial ocean world
The only known world with a living ocean.
Earth is the largest rocky planet and the only place known to host life. Liquid surface water, plate tectonics, a protective magnetic field, and a nitrogen-oxygen atmosphere make it unlike every other world we have examined.
World profile
About 78% nitrogen, 21% oxygen, and 1% other gases.
A moving rocky crust with continents, ocean basins, ice, and active plate tectonics.
Global average about 59 °F (15 °C)
One — the Moon
Composition
Field notes
Earth is the only planet known to keep stable liquid water on its surface.
The moving liquid-metal outer core generates the magnetic field that helps shield the atmosphere.
The leading model for the Moon's origin starts with a giant impact into the young Earth.
Sourced image archive
Every image keeps its credit, capture date, description, and original source. Mission imagery links back into the same Andromeda mission catalog.
Earth portrait
A seamless true-color Western Hemisphere globe assembled from Terra MODIS observations of land, ocean, sea ice, and clouds.
Connected mission archive
Flybys, orbiters, landers, atmospheric probes, rovers, launch missions, gravity assists, and system satellites are linked here when they exist in the Andromeda catalog.
Open mission browser →8816 linked missions · showing 49–72
Moon · Rover
Chandrayaan-2 is catalogued by GCAT as a deep-space mission in the Chandrayaan program.
View in 3D map — Chandrayaan-2Primary facts source
NASA Science · Earth facts ↗Earth orbit · Observatory
Spektr-RG is catalogued by GCAT as a astronomy mission in the Spektr program.
View in 3D map — Spektr-RG
Moon · Deep-space mission
Chang'e 4 hao is catalogued by GCAT as a deep-space mission in the Chang'e program.
View in 3D map — Chang'e 4 haoEarth orbit · Observatory
STARS AO (Aoi) is catalogued by GCAT as a astronomy mission in the STARS program.
View in 3D map — STARS AO (Aoi)Earth orbit · Observatory
TESS is catalogued by GCAT as a astronomy mission in the MIDEX program.
View in 3D map — TESSEarth orbit · Observatory
HXMT is catalogued by GCAT as a astronomy mission in the CAS program.
View in 3D map — HXMTEarth orbit · Observatory
DAMPE is catalogued by GCAT as a astronomy mission in the CAS program.
View in 3D map — DAMPEEarth orbit · Observatory
ASTROSAT is catalogued by GCAT as a astronomy mission in the ISRO Sci program.
View in 3D map — ASTROSATEarth orbit · Observatory
Astroseismology.
View in 3D map — BRITE-PL-2 "Heweliusz"Earth orbit · Observatory
BRITE-CA1 (Brite-Toronto) is catalogued by GCAT as a astronomy mission in the BRITE program.
View in 3D map — BRITE-CA1 (Brite-Toronto)
Earth orbit · Human-spaceflight support
Zvezda is catalogued by GCAT as a human-spaceflight mission in the DOS program.
View in 3D map — ZvezdaEarth orbit · Cargo mission
Zarya Cargo Block is catalogued by GCAT as a human-spaceflight mission in the TsM program.
View in 3D map — Zarya Cargo Block
Moon · Lunar infrastructure program
KASA's lunar-base roadmap calls for international cooperation and sustained lunar operations through the 2040s.
View in 3D map — Korea Lunar Base ProgramMoon · Crewed lunar landing program
India's crewed lunar landing roadmap targets an indigenous Moon landing by 2040 using new heavy-lift, docking, and landing systems.
View in 3D map — India Crewed Lunar LandingLow Earth orbit · Human Exploration
Bharatiya Antariksh Station is India's planned orbital station target for 2035, intended to support long-duration human spaceflight.
View in 3D map — Bharatiya Antariksh StationAssociations use destination records plus a curated cross-world manifest for flybys and gravity assists. Mission-name collisions such as Project Mercury and Saturn launch vehicles are deliberately kept with Earth unless they actually visited the planet. Technically obvious; historically necessary.
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