A galaxy is a gravitationally bound system of stars, interstellar gas, stellar remnants,  dust and dark matter. The word galaxy is derived from the Greek term galaxias written as , which literally means "milky", a reference to the Milky Way. Galaxies range in size from dwarfs with just a few hundred million or 108 stars to giants with one hundred trillion or 1014 stars, each orbiting the center of mass of its own galaxy. In the year 2016, a research was released that revised the number of galaxies in the observable universe from a previous estimate of 200 billion, that is, 2×1011 to a suggested two trillion or 2×1012 or possibly even more and, overall, as many as an estimated 1×1024 stars which accounts for more stars than all the grains of sand on planet Earth. Most of the galaxies range from 1,000 to 100,000 parsecs in diameter which equals approximately 3000 to 300,000 light years and are separated by distances on the order of millions of parsecs (or megaparsecs). For comparison, the Milky Way has a diameter of at least 30,000 parsecs, that is, 100,000 light years and is separated from the Andromeda Galaxy, its nearest largest neighbor, by 780,000 parsecs or 2.5 million light years.

In this sub category you can download free PNG images: Galaxy Miscellaneous. In this category "Galaxy" we have 8 free PNG images with transparent background.

  • Galaxy Png PNG Image
    Galaxy Png
    Format: PNG
    Resolution: 650x492
    Size: 169.3KB
    Downloads: 763
  • Galaxy Transparent PNG Image
    Galaxy Transparent
    Format: PNG
    Resolution: 1624x1370
    Size: 1.8MB
    Downloads: 2,696
  • Galaxy Free Download Png PNG Image
    Galaxy Free Download Png
    Format: PNG
    Resolution: 640x480
    Size: 587.3KB
    Downloads: 726
  • Galaxy Picture PNG Image
    Galaxy Picture
    Format: PNG
    Resolution: 887x900
    Size: 883.9KB
    Downloads: 983
  • Galaxy Png Clipart PNG Image
    Galaxy Png Clipart
    Format: PNG
    Resolution: 900x900
    Size: 591.0KB
    Downloads: 863
  • Galaxy Png Image PNG Image
    Galaxy Png Image
    Format: PNG
    Resolution: 900x432
    Size: 327.4KB
    Downloads: 724
  • Blue Map Star Sky Night World PNG Image
    Blue Map Star Sky Night World
    Format: PNG
    Resolution: 2535x1291
    Size: 1.7MB
    Downloads: 320
  • Purple Violet Youtube Galaxy Unicorn Free PNG HQ PNG Image
    Purple Violet Youtube Galaxy Unicorn Free PNG HQ
    Format: PNG
    Resolution: 468x623
    Size: 525.5KB
    Downloads: 228

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