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  1. Dictionary
    aurora
    /ɔːˈrɔːrə/

    noun

    • 1. a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole. The effect is caused by the interaction of charged particles from the sun with atoms in the upper atmosphere. In northern and southern regions it is respectively called aurora borealis or Northern Lights and aurora australis or Southern Lights.
    • 2. the dawn. literary

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  3. en.wikipedia.org › wiki › AuroraAurora - Wikipedia

    Aurora australis seen from the ISS, 2017. An aurora (pl. aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant ...

  4. dictionary.cambridge.org › dictionary › englishAURORA | English meaning - Cambridge Dictionary

    Aurora is a natural appearance of coloured light in the sky that is usually seen in the latitudes nearest the Arctic or Antarctic. Learn more about aurora, its types, causes, and related words and phrases from Cambridge Dictionary.

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  6. www.merriam-webster.com › dictionary › auroraAurora Definition & Meaning - Merriam-Webster

    Learn the origin, usage and synonyms of the word aurora, which can mean dawn, a Roman goddess or a luminous phenomenon in the sky. See examples of aurora in sentences and related articles from various sources.

  7. spaceplace.nasa.gov › aurora › enWhat Is an Aurora? | NASA Space Place – NASA Science for Kids

    May 6, 2024 · An aurora is a light show in the sky caused by the Sun's energy and particles. Learn how auroras happen on Earth and other planets, and see amazing photos and videos of them.

  8. www.nationalgeographic.org › encyclopedia › auroraAurora - National Geographic Society

    Oct 19, 2023 · An aurora is a natural light display that shimmers in the sky, caused by solar wind interacting with Earth's magnetic field. Learn about the colors, causes, and locations of auroras, and how they are studied by satellites.

  9. www.dictionary.com › browse › auroraAURORA Definition & Meaning | Dictionary.com

    noun. an atmospheric phenomenon consisting of bands, curtains, or streamers of light, usually green, red, or yellow, that move across the sky in polar regions. It is caused by collisions between air molecules and charged particles from the sun that are trapped in the earth's magnetic field. poetic.

  10. www.britannica.com › science › aurora-atmosphericAurora | Location & Facts | Britannica

    1 day ago · Aurora is a luminous phenomenon of Earth's upper atmosphere caused by the interaction of solar wind particles with atoms. Learn about the different forms, colours, and locations of auroras, and how they are related to Earth's magnetic field and other planets.