A galaxy is a 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 …

May 5, 2026 · 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 …

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Apr 29, 2026 · What is a galaxy? A galaxy is 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 …

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 …

Feb 5, 2026 · Discover what a galaxy is explained in simple terms, how many galaxies exist, and how the universe size shapes our view of the cosmos—packed with clear, engaging science.

Mar 18, 2026 · A galaxy can contain hundreds of billions of stars and be many thousands of light-years across. Our own galaxy, the Milky Way, is around 100,000 light-years in diameter.

May 16, 2026 · A galaxy is a massive gravitationally bound system containing stars, stellar remnants, gas, dust, dark matter, planets, and other astronomical objects. Galaxies range from tiny dwarf …

Nov 8, 2023 · A galaxy is a large system of stars, gas (mostly hydrogen), dust and dark matter that orbits a common center and is bound together by gravity — you can think of them as "island universes."

Nov 7, 2025 · Although these are the four main types, there are various types of galaxies, and they are classified by shape. A galaxy is a cluster of stars, gas, and dust that is kept together by the force of …