A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. Greek word "Ggalaxias" literally "milky", a reference to the Milky Way. Galaxies range in size from dwarfs with just a few hundred million (108) stars to giants with one hundred trillion (1014) stars, each orbiting its galaxy's centre of mass. Is inspired from NASA images regarding Galaxy! ... The Galaxy, Day and night, 3 elements, no frame, 36X24X1 inch, 61.5x91.5x4 cm,  SKU 3032 ... hand made ... ready to hang ... Certificate of Authenticity ... varnish protected ...