spiral galaxy
noun
: a galaxy exhibiting a central nucleus or barred structure from which extend curved arms of higher luminosity
called also spiral nebula
Examples of spiral galaxy in a Sentence
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Built from Hubble Space Telescope images, the full portrait offers an unprecedented view that could transform our understanding of how spiral galaxies form and evolve.
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Sharmila Kuthunur, Space.com, 24 Apr. 2025
The anniversary image was stitched together from various Hubble observations and produced using new processing techniques which better highlight Messier 104's unique structure—sporting features of both elliptical and spiral galaxies.
—Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025
Astrophysicists have long thought that large spiral galaxies like the Milky Way form over several billion years in a chaotic process and initially form irregular shapes.
—Paul Smaglik, Discover Magazine, 16 Apr. 2025
Astronomers have discovered the most distant and thus earliest spiral galaxy ever seen, using the James Webb Space Telescope (JWST).
—Robert Lea, Space.com, 16 Apr. 2025
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Sharmila Kuthunur, Space.com, 24 Apr. 2025
The anniversary image was stitched together from various Hubble observations and produced using new processing techniques which better highlight Messier 104's unique structure—sporting features of both elliptical and spiral galaxies.
—Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025
Astrophysicists have long thought that large spiral galaxies like the Milky Way form over several billion years in a chaotic process and initially form irregular shapes.
—Paul Smaglik, Discover Magazine, 16 Apr. 2025
Astronomers have discovered the most distant and thus earliest spiral galaxy ever seen, using the James Webb Space Telescope (JWST).
—Robert Lea, Space.com, 16 Apr. 2025
See All Example Sentences for spiral galaxy
Cite this Entry
“Spiral galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spiral%20galaxy. Accessed 6 May. 2025.
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