The distance between the Earth and the Moon, its natural satellite, is about 384.000 km and the Εarth's diameter is a quarter bigger than the Moon's one.
The Earth is bombarded with information from space in the form of electromagnetic radiation. The electromagnetic spectrum covering VHF waves of gamma rays, x-rays, radiation of radio waves, ultraviolet, infrared and visible field of radiation, revealing another image of the universe.
The encounter of two spiral galaxies, NGC 2207 and IC 2163
At a distance of 114 of millions of light years from Earth, the spiral galaxy IC 2163 with a diameter of 100,000 light years caught up in the largest galaxy of the same type, the NGC 2207 with a diameter of 143,000 light years
The spacecraft of Apollo 10 set into orbit around the Moon in 1969 and was consisted of the service/command module "Charlie Brown" and the lunar module "Snoopy"