Galaxies

Galaxies are vast systems of stars, gas, dust, and dark matter bound together by gravity. They come in a variety of shapes and sizes, ranging from spiral and elliptical to irregular. Galaxies can contain billions to trillions of stars, and are often grouped together in clusters or superclusters. These cosmic structures are the building blocks of the universe, serving as the homes for stars, planets, and other celestial bodies. Scientists study galaxies to learn more about the origins and evolution of the universe.

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Active Galaxies
Barred Spiral Galaxies
Disk Galaxies
Dwarf Galaxies
Elliptical Galaxies
Formation Of Galaxies
Galaxies
Irregular Galaxies
Lenticular Galaxies
Metagalaxies
Protogalaxies
Redshift Galaxies
Spiral Galaxies
Spiral GalaxiesArm Structure
Spiral GalaxiesBarred
Spiral GalaxiesDust Lanes
Spiral GalaxiesRotation Curve
Unbarred Spiral Galaxies