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
Eric Berger, ArsTechnica, 14 May 2025
This fall, Phoenix will welcome a first-of-its-kind International Dark Sky Discovery Center, a 23,000-square-foot astronomy hub with an observatory, planetarium, and immersive exhibits.
—Stephanie Vermillion, Travel + Leisure, 8 May 2025
Courtesy of Atlas Ocean Voyages Imagine travel that effortlessly connects you more deeply with local experts in music, history, gastronomy, and astronomy.
—Atlas Ocean Voyages, AFAR Media, 7 May 2025
For between 30 to 40 minutes before sunrise on Friday, April 25, the slender waning crescent moon appeared to left of a bright planet Venus and a much fainter Saturn to create a happy face, according to astronomy news outlet EarthSky.
—James Powel, USA Today, 30 Apr. 2025
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Cite this Entry
“Astronomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomy. Accessed 22 May. 2025.
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astronomy
noun
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