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sky

File:July_night_sky_(35972569256).jpg · Wikimedia Commons · See Wikimedia Commons

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sky

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Also known as celestial dome, celestial vault, firmament

upright=1.25|thumb|The night sky over Slovenia in July upright=1.25|thumb|cirrus cloud|Cirriform clouds and a quarter [[Moon in the blue daytime sky over Germany]]

AI overview

The sky is the atmosphere and space visible above Earth, where clouds, the Moon, and other celestial objects appear. It matters because it contains the air we breathe, protects us from harmful radiation, and plays a central role in weather and climate systems.

AI-generated from the Wikipedia summary — may contain errors.

~14 min read

Encyclopedic overview

11 sections
Contents
  • Etymology
  • During daytime
  • During twilight
  • During the night
  • Use in weather forecasting
  • Tropical cyclones
  • Use in transportation
  • Significance in mythology
  • See also
  • References
  • External links

upright=1.25|thumb|The night sky over Slovenia in July upright=1.25|thumb|cirrus cloud|Cirriform clouds and a quarter [[Moon in the blue daytime sky over Germany]]

The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.

Excerpted from Wikipedia’s “sky” article, available under the CC BY-SA 4.0 licence.

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