单词	airglow
释义	airglow noun air·​glow ˈer-ˌglō  : light that is observed especially during the night, that originates in the high atmosphere of a planet (such as the earth), and that is associated with photochemical reactions of gases caused by solar radiation Example Sentences Recent Examples on the Web There is also a glowing halo of oxygen in the planet's atmosphere called airglow, a type of light that also exists in Earth's atmosphere. Ashley Strickland, CNN, 10 Feb. 2022 While the clouds and airglow features changed, the swoosh remained. Steven D. Miller, The Conversation, 26 Aug. 2021 In order for those faint galaxies to stand out from the sky’s airglow, astronomers already needed long exposures on the biggest telescopes in the darkest sites available. Joshua Sokol, Science | AAAS, 28 Mar. 2021 Atmospheric airglow, and red and green aurorae from atomic oxygen. Lee Billings, Scientific American, 20 Dec. 2016 As Danny Lewis reported for Smithsonian magazine in 2016, scientists estimate that airglow is about one billion times fainter than sunlight. Nora Mcgreevy, Smithsonian Magazine, 18 June 2020 By studying Mars’ airglow, scientists hope to learn more about its atmosphere. Nora Mcgreevy, Smithsonian Magazine, 18 June 2020 The brightest airglow happens during nighttime, when collisions between oxygen molecules create a bright green glow. Nora Mcgreevy, Smithsonian Magazine, 18 June 2020 The faint greenish-yellow tracing of the upper atmosphere, which is seen above the horizon, is known as airglow. Fox News, 23 Oct. 2019 See More Word History First Known Use 1949, in the meaning defined above
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