ellipse - a geometric shape that resembles a stretched-out circle., hemisphere - a division of an object or a planet into two equal halves along a specific plane., equinox - occurs twice a year when the plane of the Earth's equator passes through the center of the Sun, resulting in equal lengths of day and night, solstice - occurs twice a year and marks the point of greatest axial tilt of the Earth relative to the Sun., universal gravitation - every object in the universe pulls on every other object, and the strength of this pull depends on two factors: the mass of the objects and the distance between them., inertia - a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force., gravity - a fundamental force of nature that governs the attraction between objects with mass or energy.,

Space Orbit Terms

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