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. Check out latest movies playing and show times at Galaxy Paradise (Miniplex): Begur Road and other nearby theatres in your city. Book movie tickets at cinemas near you in Bengaluru on BookMyShow. What is a galaxy? A galaxy is a sprawling space system which is composed of stars, dust, interstellar gas, stellar remnants, and dark matter and all held together by gravity. 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.
