Outer space, or just space, is the void that exists between celestial bodies, including the Earth. 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 and cosmic rays.

"We long to be here for a purpose, even though, despite much self-deception, none is evident."
Carl Sagan
0 online
Chat