planetary science

noun

planetary scientist noun

Examples of planetary science in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
By mapping the Butterfly Star’s protoplanetary disk in such detail, astronomers are piecing together one of the most important puzzles in planetary science. Rupendra Brahambhatt, Interesting Engineering, 30 Aug. 2025 The budget especially slashed the budget of the Science Mission Directorate — which includes Earth sciences, heliophysics, astrophysics, and planetary science — by a whopping 47%. Ethan Siegel, Big Think, 20 Aug. 2025 Wadhwa went on to receive a doctorate in Earth and planetary sciences from Washington University in St. Louis, as well as bachelor’s and master’s degrees in geology from Panjab University in Chandigarh, India. Ashley MacKin Solomon, San Diego Union-Tribune, 4 Aug. 2025 Scientists still debate what drove the Cambrian explosion, but the most popular theory is that oxygen in the Earth’s atmosphere slowly began to increase about 550 million years ago, said Erik Sperling, an associate professor of Earth and planetary sciences at Stanford University. Kameryn Griesser, CNN Money, 24 July 2025 See All Example Sentences for planetary science

Word History

First Known Use

1969, in the meaning defined above

Time Traveler
The first known use of planetary science was in 1969

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Cite this Entry

“Planetary science.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/planetary%20science. Accessed 9 Sep. 2025.

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