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
Recent Examples on the Web
The Milky Way images most people are familiar with, depicting the sweeping spiral galaxy from above, are illustrations, not photographs, Longmore said.
—
Asuka Koda, CNN Money, 5 Mar. 2026
The James Webb Space Telescope (JWST) has captured a truly spectacular view of the spiral galaxy NGC 5134, revealing glowing dust clouds, newborn stars and the ongoing cycle of stellar life and death.
—Daisy Dobrijevic, Space.com, 4 Mar. 2026
The motions of stellar streams contain clues to how our barred spiral galaxy evolved over billions of years, including through collisions with other galactic realms.
—Frank Landymore, Futurism, 26 Feb. 2026
Grillmair’s work had focused on uncovering the structure of the Milky Way, identifying faint stellar streams and substructures that make up the galactic halo surrounding our spiral galaxy, and helping reshape our understanding of how galaxies evolve, according to his website.
—Clara Harter, Los Angeles Times, 20 Feb. 2026
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Asuka Koda, CNN Money, 5 Mar. 2026
The James Webb Space Telescope (JWST) has captured a truly spectacular view of the spiral galaxy NGC 5134, revealing glowing dust clouds, newborn stars and the ongoing cycle of stellar life and death.
—Daisy Dobrijevic, Space.com, 4 Mar. 2026
The motions of stellar streams contain clues to how our barred spiral galaxy evolved over billions of years, including through collisions with other galactic realms.
—Frank Landymore, Futurism, 26 Feb. 2026
Grillmair’s work had focused on uncovering the structure of the Milky Way, identifying faint stellar streams and substructures that make up the galactic halo surrounding our spiral galaxy, and helping reshape our understanding of how galaxies evolve, according to his website.
—Clara Harter, Los Angeles Times, 20 Feb. 2026
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 13 Mar. 2026.
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