launch window

noun

Examples of launch window in a Sentence

Recent Examples on the Web
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The mission will launch on Japan's flagship H3 rocket some time in November or December of this year, during a short optimal Mars launch window that opens once every 26 months. Andrew Jones, Space.com, 23 Apr. 2026 With about 30 minutes to go before the launch window opened, NASA said the weather was 90% go for launch. Miles Doran, CBS News, 1 Apr. 2026 Less than one hour from the launch window, the weather has improved enough to be considered a 90% go, according to Derrol Nail, a broadcaster on NASA's livestream. Charlie Gile, NBC news, 1 Apr. 2026 More than three years later, Artemis II suffered the same hydrogen leaks during a February fueling practice run, missing the first launch window. Marcia Dunn, Chicago Tribune, 1 Apr. 2026 See All Example Sentences for launch window

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of launch window was in 1962

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Cite this Entry

“Launch window.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/launch%20window. Accessed 1 May. 2026.

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