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 →8814 linked missions · showing 1–24
Low Earth Orbit · Earth Science
Note: Payload and customer identities were not publicly announced. 5th of the BlackSky Gen-3 high resolution Earth-imaging satellites.
View in 3D map — Happily Ever Faster (BlackSky Gen-3 5)Primary facts source
NASA Science · Earth facts ↗Low Earth Orbit · Government/Top Secret
USSF-153 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield satellite bus, based on locations of rocket stage drop zones being exact fits with previous Starlink Group 15 launches.
View in 3D map — USSF-153Low Earth Orbit · Government/Top Secret
6 Chinese military “remote sensing” satellite of unknown purposes.
View in 3D map — Yaogan 53-01 to 03/56-01 to 03
SpaceXactiveLow Earth Orbit · Communications
A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
View in 3D map — Starlink Group 15-24Earth · Earth Observation
ISRO Earth observation satellite launched on GSLV-F17 from Sriharikota on September 4, 2026 IST.
View in 3D map — EOS-05SpaceXactiveLow Earth Orbit · Communications
A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
View in 3D map — Starlink Group 15-23
Low Earth Orbit · Earth Science
Synspective's 11th StriX X-band synthetic aperture radar satellite, launching on Rocket Lab's Electron to expand all-weather, day-and-night Earth observation.
View in 3D map — Owl Around The World (StriX Launch 11)
Sun–Earth L2 · Astrophysics
NASA flagship infrared observatory for dark energy, exoplanets, and wide-field astrophysics surveys.
View in 3D map — Nancy Grace Roman Space TelescopeEarth · Earth Science
Third Meteosat Third Generation satellite, providing detailed weather and climate observations over Europe and North Africa.
View in 3D map — MTG-I2Earth orbit · Crewed mission
Shenzhou 23 is catalogued by GCAT as a human-spaceflight mission in the Shenzhou program.
View in 3D map — Shenzhou 23Highly elliptical Earth orbit · Heliophysics
ESA and Chinese Academy of Sciences mission studying Earth's response to the solar wind and space weather.
View in 3D map — Smile
Earth orbit · Human-spaceflight support
Tianzhou-10 is catalogued by GCAT as a human-spaceflight mission in the Tianzhou program.
View in 3D map — Tianzhou-10Earth orbit · Cargo mission
Progress MS-34 is catalogued by GCAT as a human-spaceflight mission in the Progress MS program.
View in 3D map — Progress MS-34Earth orbit · Observatory
ARICA-2 is catalogued by GCAT as a astronomy mission in the Aoyama Gakuin program.
View in 3D map — ARICA-2
Earth orbit · Cargo mission
S.S. Steven R. Nagel is catalogued by GCAT as a human-spaceflight mission in the Cygnus program.
View in 3D map — S.S. Steven R. NagelEarth orbit · Human-spaceflight support
Bai Xiang is catalogued by GCAT as a human-spaceflight mission in the Qingzhou program.
View in 3D map — Bai XiangEarth orbit · Cargo mission
Progress MS-33 is catalogued by GCAT as a human-spaceflight mission in the Progress MS program.
View in 3D map — Progress MS-33SpaceXactive
Earth orbit · Crewed mission
Dragon Freedom (Crew-12) is catalogued by GCAT as a human-spaceflight mission in the Dragon 2 program.
View in 3D map — Dragon Freedom (Crew-12)Earth orbit · Observatory
BlackCAT is catalogued by GCAT as a astronomy mission in the PSU program.
View in 3D map — BlackCATEarth orbit · Research mission
Dier-5 is catalogued by GCAT as a microgravity research mission in the DEAR SM program.
View in 3D map — Dier-5Earth orbit · Observatory
ARCSTONE is catalogued by GCAT as a astronomy mission in the LARC Cube program.
View in 3D map — ARCSTONEEarth orbit · Observatory
HERMES Pathfinder H1 is catalogued by GCAT as a astronomy mission in the ASI Hermes program.
View in 3D map — HERMES Pathfinder H1Earth orbit · Observatory
PUNCH-NFI00 is catalogued by GCAT as a astronomy mission in the SMEX program.
View in 3D map — PUNCH-NFI00Earth orbit · Observatory
PROBA-3 CSC is catalogued by GCAT as a astronomy mission in the PROBA program.
View in 3D map — PROBA-3 CSCAssociations 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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