earth reconnaissance satellite

scorched earth tactics (scorch-earth tactics)

earth-centered earth-fixed coordinate system (ECEF)

earth satellite

minimum orbital unmanned satellite of the Earth

satellite-to-satellite weapon

reconnaissance satellite

reconnaissance and surveillance satellite

satellite reconnaissance

electronic reconnaissance satellite

counter reconnaissance / counter-reconnaissance

earth bank

lumps of earth

scorched earth policy

nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

slave earth station

earth penetrating weapon

earth auger truck

earth borer and polesetter truck

earth electrode

earth road

earth wax

earth albedo

earth axes

earth gravity

earth orbital flight

earth receiver

earth shoulder

earth surface

earth transmitter

Earth’s atmosphere

earth-centered orbit

Earth's electric field