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Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae[ 1 ] and, as such, form part of the Hubble sequence. Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge.
Nov 19, 2018 · Learn what spiral galaxies are, how they form, and why they are so common in the universe. See examples of spiral galaxies, such as the Milky Way, and how they differ from elliptical and irregular galaxies.
Explore the fascinating world of spiral galaxies with NASA's comprehensive guide, featuring suggested searches and in-depth information.
Jan 29, 2024 · See stunning images of face-on spiral galaxies in near- and mid-infrared light, revealing their dust, stars, and star clusters. Learn how Webb's observations contribute to the PHANGS program, a large project to study the structure and evolution of nearby galaxies.
Apr 30, 2024 · Learn about spiral galaxies, one of the most common types of galaxies in the universe, with distinctive spiral arms and central bulges. Find out how they are classified, how they form, and which ones are the most famous and studied.
Learn what a spiral galaxy is and how it differs from other types of galaxies. See stunning images of spiral galaxies captured by Hubble, such as the Andromeda Galaxy and NGC 1073.
Jan 30, 2024 · See stunning images of nearby spiral galaxies in near- and mid-infrared light, revealing their stars, gas and dust. Learn how Webb's views can help scientists to study star formation and the evolution of spiral galaxies.
