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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Located over 12 million light-years from Earth, a spiral galaxy known as NGC 4945 is blowing powerful winds of material from the supermassive black hole located at its core.
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Samantha Mathewson, Space.com, 2 Apr. 2025
Time-lapse video taken from Croatia at around 4 p.m. EST, or 9 p.m. local time, shows the glowing light spinning across the sky in what many social media commentators likened to a spiral galaxy.
—Michael Dorgan, Fox News, 25 Mar. 2025
Astrophysicists have long thought the violent activity of such colossal black hole jets would disrupt the structure of a spiral galaxy.
—Kevin Sabet, Newsweek, 24 Mar. 2025
For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies.
—Paul Sutter, Space.com, 19 Mar. 2025
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Samantha Mathewson, Space.com, 2 Apr. 2025
Time-lapse video taken from Croatia at around 4 p.m. EST, or 9 p.m. local time, shows the glowing light spinning across the sky in what many social media commentators likened to a spiral galaxy.
—Michael Dorgan, Fox News, 25 Mar. 2025
Astrophysicists have long thought the violent activity of such colossal black hole jets would disrupt the structure of a spiral galaxy.
—Kevin Sabet, Newsweek, 24 Mar. 2025
For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies.
—Paul Sutter, Space.com, 19 Mar. 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 14 Apr. 2025.
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