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1. Dictionary

   galaxy

   /ˈɡaləksi/

   noun

   • 1. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction. Similar star systemsolar systemconstellationclusternebulaspiral galaxySeyfert galaxystarsheavens
   • ▪ the galaxy of which the solar system is a part; the Milky Way.
   • ▪ a large group of impressive people or things: "the four musicians have played with a galaxy of stars" Similar brilliant gatheringdazzling assemblageillustrious grouphostmultitudearraymassbevyhordecompanyarmyflockgroup

   Word Origin late Middle English (originally referring to the Milky Way): via Old French from medieval Latin galaxia, from Greek galaxias (kuklos) ‘milky (vault)’, from gala, galakt- ‘milk’.

   Scrabble Points: 17

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2. en.wikipedia.org › wiki › GalaxyGalaxy - Wikipedia

   en.wikipedia.org › wiki › Galaxy

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   A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. The word is derived from the Greek galaxias (γαλαξίας), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.

3. spaceplace.nasa.gov › galaxy › enWhat Is a Galaxy? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov › galaxy › en

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   Jun 13, 2024 · 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.

4. www.britannica.com › science › galaxyGalaxy | Definition, Formation, Types, Properties, & Facts

   www.britannica.com › science › galaxy

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   Jun 23, 2024 · 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. Nature has provided an immensely varied array of galaxies, ranging from faint, diffuse dwarf objects to brilliant spiral-shaped giants.

5. earthsky.org › astronomy-essentials › definition-what-is-a-galaxyWhat’s a galaxy? All you need to know - EarthSky

   earthsky.org › astronomy-essentials › definition-what-is-a-galaxy

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   May 21, 2024 · What is a galaxy? A galaxy is a vast island of gas, dust and stars in an ocean of space. Typically, galaxies are millions of light-years apart. Galaxies are the building...

6. www.merriam-webster.com › dictionary › galaxyGalaxy Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › galaxy

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   The system of stars that includes our sun looks, in the night sky, like a broad band of light. We call this band the Milky Way. The idea of the whiteness of the Milky Way being similar to that of milk is much older than the English language, however.

7. www.khanacademy.org › galaxies › aWhat Is a Galaxy? (article) | Galaxies | Khan Academy

   www.khanacademy.org › galaxies › a

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   Galaxies are titanic swarms of tens of millions to trillions of stars, orbiting around their common center of gravity. They also contain interstellar gas and dust. Galaxies show a range of shapes that astronomers group into three basic classes: spiral, elliptical, and irregular.

8. dictionary.cambridge.org › dictionary › englishGALAXY | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   GALAXY definition: 1. one of the independent groups of stars in the universe 2. a meeting of rich and famous people…. Learn more.