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The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.

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Astronomy > Mars


Astronomy; Mars

The distance from one side of a body to the other, measured through the center.


Astronomy; Mars

The scientific study of climate.


Astronomy; Mars

Transmission of heat by moving heated gases. In a hot-air furnace the heated air rises and cooler, heavier air falls.


Astronomy; Mars

The amount of matter in a unit volume of a substance; usually the mass per unit of volume.


Astronomy; Mars

The deflection of particles or radiation by scattering processes through angles greater than 90 degrees with respect to the original direction of motion.


Astronomy; Mars

The distance in degrees along the horizon, westward from the south point of the horizon, to the place where a vertical circle through the star or other object intersects the ...

axis of rotation

Astronomy; Mars

The straight line, real or imaginary, passing through a rotating body and is the line about which that body rotates.