an instrument for measuring variations in the gravitational field of the earth.
Solving the Geodesic Equations in Vacuum Spherical Symmetry Gravity Field with Maple;
The moon was formed elsewhere in the solar system and was later captured by the earth's gravitational field.
The gravity of the earth is about six times as great as that of the moon.
The moon's gravity pulls the waters of the earth into a bulge.
COMPARISON BETWEEN TRAJECTORY DISTURBING GRAVITY CALCULATED WITH EARTH GRAVITY FIELD MODELS OF EGM96 AND EGM2008
The attraction of the earth for other bodies is called the force of gravity.
The earth gravitates toward the sun.
地球 (由于引力而) 向太阳移动 [地球受太阳吸引] 。
The earth is pulled towards the sun by the force of gravity.
The tides are caused by the attraction of the moon for the earth.
it was a miracle that he survived the drop from that height.
Even though the moon's gravity is not so strong as the earth's, it does something to the earth.
continuation fo the exterior gravity field
The moon's grip on objects is not as strong as earth's.
the gravity gradient of the moon causes the ocean tides on Earth.
Ocean tides are set up by the pull between the earth and the moon.
The Laplace Operator in General Spherically Symmetric Gravitational Fields;
Chaotic attitude motion of a magnetic rigid spacecraft in a circular orbit of the earth is treated.