Outer space, or simply space, is the void that exists between celestial bodies, including the Earth.{sfn|Dainton|2001|pp=132–133} It is not completely empty, but consists of a hard vacuum containing a low density of particles: predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust an... Found on http://en.wikipedia.org/wiki/Outer_space
noun any location outside the Earth`s atmosphere; `the astronauts walked in outer space without a tether` Found on https://www.encyclo.co.uk/local/20974