outer space definition
outer space means the space above the surface of the earth from a height at which it is in practice possible to operate an object in an orbit around the earth;
outer space means a space extending beyond the earth at an altitude of more than one hundred kilometers above the sea level;
outer space means 80 kilometers above the surface of the Earth, including the surface of the Moon and other celestial bodies
More Definitions of outer space
outer space means the universe not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means;
outer space means: Space above the altitude of 100km above sea level.