general/earth-observation
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Group on Earth Observations
Scientific coordination organization
Earth observation
Information about the Earth environment
Observation balloon
Military crewed balloon
Global Earth Observation System of Systems
Satellite constellation
SSOT (satellite)
Chilean earth observation satellite
Earth observation satellite
Satellite designed to observe Earth from orbit
A-train (satellite constellation)
Satellite constellation of three Earth observation satellites
European Remote-Sensing Satellite
European Space Agency Earth-observing satellite program
GOCE
ESA satellite to map Earth's gravity field
Envisat
ESA Earth observation satellite (2002–2012)
Swarm (spacecraft)
ESA's space program to study Earth's magnetic field