GALAXY
The term "galaxy" typically refers to a vast system of stars, interstellar gas, dust, and dark matter, all bound together by gravity. Galaxies come in various shapes and sizes, ranging from small dwarf galaxies to large, spiral or elliptical galaxies.
In our own cosmic neighborhood, the Milky Way is the galaxy in which our solar system resides. It is a barred spiral galaxy with a diameter of about 100,000 light-years and contains billions of stars.
Galaxies are not evenly distributed throughout the universe but are instead found in clusters, groups, or superclusters. These structures form the large-scale cosmic web, where galaxies are interconnected by gravitational forces.
Observations and studies of galaxies have greatly contributed to our understanding of the universe's structure, evolution, and composition. They have also revealed phenomena such as black holes, galaxy mergers, and the expansion of the universe.

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