The Cosmic Background Radiation has a thermal black body spectrum at a temperature of 2.725 K, which is the accepted temperature of the Universe. See related link for more information.
No-one owns the space in outer space. One of the terms of the Outer Space Treaty prohibits all government from claiming any space territory, including territory on the moons, planets and otyher...
Outer space is known as space due to the vast amount of empty nothingness (Space) it contains. A space is a void with nothing to fill it. That is, no form of mass - neither gas, liquid or solid....