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  1. 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.

  2. Atmosphere of Earth - Wikipedia

    The atmosphere of Earth consists of a layer of mixed gas (commonly referred to as air) that is retained by gravity, surrounding the Earth 's surface. It contains variable quantities of suspended aerosols and …

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

    May 13, 2024 · Although we cannot directly see the atmosphere, it provides the air we breathe and protects us from harmful ultraviolet (UV) rays. The atmosphere also works to trap heat and maintain …

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

    Dec 17, 2025 · Earth's atmosphere is a mixture of nitrogen, oxygen, water vapour, carbon dioxide, and several other minor components.

  5. The Atmosphere | National Oceanic and Atmospheric Administration

    Jul 2, 2024 · The atmosphere surrounds the Earth and holds the air we breathe; it protects us from outer space; and holds moisture (clouds), gases, and tiny particles. In short, the atmosphere is the …

  6. Atmosphere - National Geographic Society

    One of the main components of Earth’s interdependent physical systems is the atmosphere. An atmosphere is made of the layers of gases surrounding a planet or other celestial body. Earth’s …

  7. What Is the Atmosphere? - WorldAtlas

    Aug 20, 2023 · The article explores what the atmosphere is, its function, what it consists of, and its importance for human life through scientific discoveries.

  8. The Atmosphere | Earth Science - Lumen Learning

    Earth’s atmosphere is a thin blanket of gases and tiny particles — together called air. We are most aware of air when it moves and creates wind. All living things need some of the gases in air for life …

  9. Atmosphere - Wikipedia

    An atmosphere is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. The name originates from Ancient Greek ἀτμός (atmós) 'vapour, steam' and σφαῖρα …

  10. What Is the Atmosphere? - GeeksforGeeks

    Jul 23, 2025 · The atmosphere is a layer of gases that surrounds the Earth. The atmosphere is made up of different layers, such as the Troposphere, Stratosphere, Mesosphere, Thermosphere, and …