Galaxy, any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. A galaxy is a physical system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. [1][2] The word is derived from the Greek galaxias (γαλαξίας), meaning 'milky', a reference to the Milky Way galaxy that contains the Solar System. What Is a Galaxy? The Short Answer: A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy. Galaxy Theatres, LLC is a fully integrated movie theatre company. Privately owned, it is ranked by size in the top 10% of its industry, according to the National Association of Theatre Owners and currently has theatres in Arizona, California, Nevada, Texas, and Washington. Galaxy can bulk import lists & tables of URLs into datasets or collections using reproducible rules. Galaxy is a community-driven web-based analysis platform for life science research. Join fans from across the galaxy and celebrate Comic Books, Pop Culture, Sci-Fi, Fantasy, Anime, Gaming, Cosplay, and more! We look forward to seeing you August 28-30, 2026 at the San Jose McEnery Convention Center. If you have questions, please email sanjose@galaxycon.com. Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years. Discover our newest Galaxy smartphones and explore Samsung's full lineup—including the Galaxy S25 Series, Flip and Fold phones, Fan Edition, A Series 5G, and more. What is a Galaxy? A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravitational forces. Select and compare the latest features and innovations available across the entire family of Samsung Galaxy phones, and find the perfect phone for you!.