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Axis
Axis definition: The imaginary line around which Earth rotates, it runs through Earth from pole to pole.
Related Terms
Astronomy
Crater
Electromagnetic Spectrum
Equinox
Gravity
Lunar Eclipse
Maria
Moon Phase
Observatory
Orbit
Penumbra
Radio Telescope
Reflecting Telescope
Refracting Telescope
Revolution
Rocket
Rotation
Satellite
Solar Eclipse
Space Probe
Space Shuttle
Space Station
Telescope
Thrust
Umbra
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