Outer Space Definition
The astronauts walked in outer space without a tether.
Outer space definition. Space immediately outside the earth s atmosphere broadly. Outer space or simply space is the expanse that exists beyond earth and between celestial bodies. Word of the day.
The part of space that is very far away from earth 2. Outer space is not completely empty it is 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 and cosmic rays. Interplanetary or interstellar space.
Location a point or extent in space. Not in technical usage any region of space beyond the atmosphere of the earth. Collins english dictionary complete unabridged 2012 digital edition william collins sons co.
Definition of outer space. The first major milestone in space exploration was in 1957 when the ussr s sputnik 1 orbited the earth.