What Is... Earth's Atmosphere? - NASA
2024年5月13日 · Learn about the five layers of Earth's atmosphere, from the troposphere where we breathe and weather occurs, to the exosphere where satellites orbit. Discover how the atmosphere protects us from UV rays, traps heat, and affects climate and health.
Atmosphere of Earth - Wikipedia
The atmosphere of Earth is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes), all retained by Earth's gravity.
What Is the Atmosphere? - Center for Science Education
The atmosphere is a mixture of gases that surrounds the Earth. It helps make life possible by providing us with air to breathe, shielding us from harmful ultraviolet (UV) radiation coming from the Sun, trapping heat to warm the planet, and preventing extreme temperature differences between day and night.
The Atmosphere | National Oceanic and Atmospheric Administration
2024年7月2日 · Learn about the composition, functions, and layers of the atmosphere, the protective bubble that surrounds the Earth. Find out how nitrogen, oxygen, argon, carbon dioxide, and water vapor affect the climate and life on Earth.
Earth’s Atmosphere: A Multi-layered Cake - Science@NASA
2019年10月2日 · Learn about the five major layers of Earth's atmosphere, from the troposphere where weather and clouds occur, to the exosphere where satellites orbit and the aurora are seen. Find out how temperature, pressure, and density vary …
Atmosphere | Definition, Layers, & Facts | Britannica
2024年11月15日 · Learn about the atmosphere, the gaseous envelope that extends from Earth's surface into space. Find out how the atmosphere is composed of various gases, particulates, and liquids, and how it affects the climate and life on Earth.
Atmosphere - Wikipedia
An atmosphere is a layer of gases that envelops a planet or star, held by gravity. Learn about the origins, compositions, and structures of different atmospheres in the Solar System and beyond.
Earth's Atmosphere - NASA
Earth's atmosphere is a thin layer of gases surrounding the planet, protecting it and enabling life.
Earth - Atmosphere, Climate, Ozone | Britannica
5 天之前 · The atmosphere is commonly described in terms of distinct layers, or regions. Most of the atmosphere is concentrated in the troposphere, which extends from the surface to an altitude of about 10–15 km (6–9 miles), depending on latitude and season. The behaviour of the gases in this layer is controlled by convection.
Earth's Atmosphere | NASA Space Place – NASA Science for Kids
2019年12月11日 · Learn about the six layers of Earth's atmosphere and how they protect, warm, and provide oxygen for our planet. Explore the images and activities to discover more about the jacket of gases that surrounds our world.