User blog comment:Griever0311/Okay guys, RIGHT NOW.../@comment-1915350-20100624123322

Space is not nothing

Outer space is the void that exists beyond any celestial body including the Earth. It is not completely empty (i.e. a perfect vacuum), but contains a low density of particles, predominantly hydrogen plasma, as well as electromagnetic radiation, magnetic fields, and neutrinos. Theoretically, it also contains dark matter and dark energy.