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 25–48
Earth orbit · Observatory
GRBBeta is catalogued by GCAT as a astronomy mission in the TUKE program.
View in 3D map — GRBBetaPrimary facts source
NASA Science · Earth facts ↗Earth orbit · Observatory
SVOM is catalogued by GCAT as a astronomy mission in the CAS SVOM program.
View in 3D map — SVOM
Moon · Sample return
Chang'e-6 is catalogued by GCAT as a deep-space mission in the Chang'e program.
View in 3D map — Chang'e-6Earth orbit · Observatory
Einstein Tanzhen is catalogued by GCAT as a astronomy mission in the CAS program.
View in 3D map — Einstein TanzhenEarth orbit · Observatory
XPoSAT is catalogued by GCAT as a astronomy mission in the ISRO Sci program.
View in 3D map — XPoSAT
Sun–Earth L1 · Observatory
ADITYA-L1 is catalogued by GCAT as a astronomy mission in the ISRO Deep program.
View in 3D map — ADITYA-L1Earth orbit · Observatory
Euclid is catalogued by GCAT as a astronomy mission in the ESA Ast program.
View in 3D map — EuclidEarth orbit · Observatory
CXPD is catalogued by GCAT as a astronomy mission in the Guangxi program.
View in 3D map — CXPDEarth orbit · Observatory
NEXTSAT-2 is catalogued by GCAT as a astronomy mission in the KAIST NEXT program.
View in 3D map — NEXTSAT-2Earth orbit · Human-spaceflight support
Mengtian shiyan cang is catalogued by GCAT as a human-spaceflight mission in the Tiangong program.
View in 3D map — Mengtian shiyan cangEarth orbit · Observatory
Xianjin tianji taiyang tian. is catalogued by GCAT as a astronomy mission in the CAS program.
View in 3D map — Xianjin tianji taiyang tian.
Moon · Deep-space mission
Korean Pathfinder Lunar Orb. is catalogued by GCAT as a deep-space mission in the KLEP program.
View in 3D map — Korean Pathfinder Lunar Orb.Earth orbit · Human-spaceflight support
Wentian shiyan cang is catalogued by GCAT as a human-spaceflight mission in the Tiangong program.
View in 3D map — Wentian shiyan cangEarth orbit · Research mission
GREENCUBE is catalogued by GCAT as a space biology mission in the ROSAP program.
View in 3D map — GREENCUBEEarth orbit · Observatory
JWST is catalogued by GCAT as a astronomy mission in the JWST program.
View in 3D map — JWST
Sun–Earth L2 · Telescope
An infrared observatory looking back toward the first galaxies and into forming planetary systems.
View in 3D map — James Webb Space TelescopeEarth orbit · Observatory
IXPE is catalogued by GCAT as a astronomy mission in the SMEX program.
View in 3D map — IXPEEarth orbit · Observatory
KOSEN-1 is catalogued by GCAT as a astronomy mission in the KOSEN program.
View in 3D map — KOSEN-1Earth orbit · Observatory
Xihe is catalogued by GCAT as a astronomy mission in the NJU program.
View in 3D map — XiheEarth orbit · Human-spaceflight support
Mnogotselevoy lab. md. Nauka is catalogued by GCAT as a human-spaceflight mission in the TsM program.
View in 3D map — Mnogotselevoy lab. md. NaukaEarth orbit · Observatory
Tyvak-0130 is catalogued by GCAT as a astronomy mission in the LLNL program.
View in 3D map — Tyvak-0130Earth orbit · Human-spaceflight support
Tianhe is catalogued by GCAT as a human-spaceflight mission in the Tiangong program.
View in 3D map — TianheEarth orbit · Observatory
GECAM A is catalogued by GCAT as a astronomy mission in the CAS program.
View in 3D map — GECAM AEarth orbit · Observatory
Cheops is catalogued by GCAT as a astronomy mission in the ESA Ast program.
View in 3D map — CheopsAssociations 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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