• Galaxies - NASA Science

    science.nasa.gov/astrophysics/focus-areas/what-are-galaxies Galaxies Artist's Conception - The Milky Way Where are we? We live in a somewhat remote arm of the Milky Way. This video shows you the way from our home to a vantage ...
  • Galaxy - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Galaxy A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. [1] [2] The word galaxy is derived from the Greek ...
  • National Geographic - Science and Space - Galaxies

    science.nationalgeographic.com/science/space/universe/galaxies-article Galaxies are sprawling space systems composed of dust, gas, and countless stars. The number of galaxies cannot be counted—the observable universe alone may contain ...
    • List of galaxies - Wikipedia, the free encyclopedia

      en.wikipedia.org/wiki/List_of_galaxies Named galaxies. This is a list of galaxies that are well known by something other than an entry in a catalog or list, or a set of coordinates, or a systematic ...
    • Galaxies | Galactic Collisions | Galaxy Types & Facts

      www.space.com/15680-galaxies.html Galaxies are composed of stars, dust, and dark matter, all held together by gravity. They come in a variety of shapes, sizes, and ages.
    • Galaxies - Universe Today

      www.universetoday.com/30168/galaxies Hello, is there anyone out there? With all of the galaxies in the Universe, is it possible that there is cognizant life somewhere else? Well, I can not answer that ...
    • Galaxies - spiral galaxy - SEDS Messier Database

      messier.seds.org/galaxy.html Spiral Spiral galaxies usually consist of two major components: A flat, large disk which often contains a lot of interstellar matter (visible sometimes as reddish ...
    • Galaxies - Institute for Astronomy

      www.ifa.hawaii.edu/research/Galaxies.shtml Infrared Luminous Starbursts and Active Galactic Nuclei. The ultraluminous infrared galaxy Markarian 273, a major merger of two gas-rich spiral galaxies.
    • Galaxies - Astronomy For Kids - KidsAstronomy.com

      www.kidsastronomy.com/galaxys.htm Learn About Galaxies With KidsAstronomy.com There are billions of Galaxies in the Universe. Some are very small with only a few million stars.
    • HubbleSite - Picture Album: Galaxies

      hubblesite.org/gallery/album/galaxy Search Picture Album. Share. Gallery. Picture Album. Entire Collection; Hubble Heritage