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

Galaxy is a community-driven web-based analysis platform for life science research.

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4 days ago · 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. Virtually all …

4 days ago · Milky Way Galaxy (sometimes simply called the Galaxy), large spiral system of about several hundred billion stars, one of which is the Sun. It takes its name from the Milky Way, the …

Artist's impression of the structure of the Milky Way based on data from the European Space Agency 's Gaia telescope, including the location of the spiral arms, bar, and bulge The Milky Way or Milky Way …

May 16, 2026 · Learn about galaxies, including galaxy types, structure, formation, the Milky Way, dark matter, black holes, and cosmic evolution.

May 18, 2026 · 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 …