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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Triangulum Galaxy Next came the Triangulum Galaxy, M33, a spiral galaxy about 3 million light-years away from Earth in the constellation Triangulum.
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Daisy Dobrijevic, Space.com, 15 May 2026
Billions of years ago, a young spiral galaxy began to grow in a crowded part of the universe.
—Lisa Kewley, The Conversation, 14 May 2026
Messier 77 is also an active spiral galaxy with a disc rich in gas and dust, which both feeds and results from new star formation.
—Bojan Stojkovski, Interesting Engineering, 10 May 2026
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
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Daisy Dobrijevic, Space.com, 15 May 2026
Billions of years ago, a young spiral galaxy began to grow in a crowded part of the universe.
—Lisa Kewley, The Conversation, 14 May 2026
Messier 77 is also an active spiral galaxy with a disc rich in gas and dust, which both feeds and results from new star formation.
—Bojan Stojkovski, Interesting Engineering, 10 May 2026
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
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 18 May. 2026.
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