spiral galaxy


: 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 Related article Study proves black holes have a ‘plunging region,’ just as Einstein predicted In the 1970s, American astronomers Vera Rubin and W. Kent Ford confirmed dark matter’s existence by looking at stars orbiting at the edge of spiral galaxies. Jacopo Prisco, CNN, 17 June 2024 Closer to home, Euclid took a look at the gorgeous spiral galaxy NGC 6744, about 30 million light-years from Earth. Phil Plait, Scientific American, 14 June 2024 Pretty much every bright light in this image is a star but for a lovely spiral galaxy. Eric Berger, Ars Technica, 2 Apr. 2024 Although most appear as tiny, fuzzy spots or blobs, one named UGC 4526 clearly shows the spindle shape of an edge-on spiral galaxy. PCMAG, 16 May 2024 Go on, give these a whirl. Webb just released highly detailed images of 19 spiral galaxies! Jack Birle, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 30 Jan. 2024 The images will help scientists to better understand star formation and the evolution of spiral galaxies. Will Sullivan, Smithsonian Magazine, 30 Jan. 2024 The Andromeda Galaxy is the closest spiral galaxy to the Milky Way but is still about 2.5 million light years away. Dean Regas, The Enquirer, 2 Mar. 2024 The 19 images are spiral galaxies found near the Milky Way Galaxy. Discover Magazine, 6 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spiral galaxy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of spiral galaxy was in 1913

Dictionary Entries Near spiral galaxy

Cite this Entry

“Spiral galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spiral%20galaxy. Accessed 23 Jun. 2024.

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