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  1. Atmosphere of Earth - Wikipedia

    The atmosphere serves as a protective buffer between the Earth's surface and outer space. It shields the surface from most meteoroids and ultraviolet solar radiation, reduces diurnal temperature …

  2. Atmosphere | Definition, Layers, & Facts | Britannica

    May 8, 2026 · Atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. The density of the atmosphere decreases outward, …

  3. The Atmosphere | National Oceanic and Atmospheric Administration

    Jul 2, 2024 · Introduction to the Atmosphere The atmosphere is a layer of gas and suspended solids extending from the Earth's surface up many thousands of miles, becoming increasingly thinner with …

  4. Atmosphere - NASA Science

    May 8, 2026 · Atmosphere fosters research and innovation targeting the dynamics and thermodynamics of the atmosphere, its physical and chemical composition, and the interdependent impacts that these …

  5. ATMOSPHERE Definition & Meaning - Merriam-Webster

    4 days ago · The meaning of ATMOSPHERE is the gaseous envelope of a celestial body (such as a planet). How to use atmosphere in a sentence.

  6. Layers of the Earth's Atmosphere - Facts with Diagram

    Oct 6, 2023 · The atmosphere of the earth is the layer of gases (commonly called air) that surrounds the earth and creates an inhabitable environment, maintains temperature, causes weather, and protects …

  7. Composition and Structure of the Atmosphere – Environmental …

    Of this dry composition of the atmosphere nitrogen, by far, is the most common (78%). Nitrogen dilutes oxygen and prevents rapid or instantaneous burning at the Earth’s surface, as oxygen gas is a …

  8. What Is the Atmosphere? - Center for Science Education

    The atmosphere is a mixture of gases that surrounds the planet. Without the atmosphere, life on Earth wouldn't be possible.

  9. What is the Atmosphere in Earth? - The Institute for Environmental ...

    Jun 19, 2025 · What is the Atmosphere in Earth? The Earth’s atmosphere is a dynamic and complex envelope of gases surrounding our planet, held in place by gravity. It’s more than just the air we …

  10. What Is… Earth’s Atmosphere? - NASA

    May 13, 2024 · When we talk about the Earth's Atmosphere, what do we mean? Imagine a layer cake, wrapping around the Earth. That is essentially what the Earth’s atmosphere is like: layers upon …