astronomy
noun
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The Difference Between Astronomy and Astrology
Some may find it easy to confuse astronomy and astrology. At one time, these two words actually were synonymous (that is, astronomy once meant what astrology means today), but they have since moved apart from each other. In current use, astronomy is concerned with “the study of objects and matter outside the earth's atmosphere,” while astrology is the purported divination of how stars and planets influence our lives. Put bluntly, astronomy is a science, and astrology is not.
Examples of astronomy in a Sentence
Jamie Carter, Forbes.com, 28 Apr. 2025
Related: Starlink satellites: Facts, tracking and impact on astronomy
If all goes according to plan today, the Atlas V will deploy the 27 Project Kuiper satellites 280 miles (450 kilometers) above Earth.
—Mike Wall, Space.com, 28 Apr. 2025
In the past, the FCC has conditioned Starlink satellite approvals on working with the NSF to prevent interference with astronomy research.
—Michael Kan, PC Magazine, 28 Apr. 2025
In a leap forward for astronomy, a researcher has developed an artificial intelligence algorithm and discovered more than one million objects in space by parsing through understudied data from a NASA telescope.
—Margherita Bassi, Smithsonian Magazine, 15 Apr. 2025
See All Example Sentences for astronomy
Cite this Entry
“Astronomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomy. Accessed 11 May. 2025.
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astronomy
noun
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