When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Northern lights forecast: Auroras may be visible in more than ...

    www.aol.com/news/northern-lights-forecast...

    Whether hues of green, red, blue and even pink dance about in the sky depends on the altitude where the collisions occur, as well as the composition and density of the atmosphere at the time.

  3. Sky - Wikipedia

    en.wikipedia.org/wiki/Sky

    The night sky and studies of it have a historical place in both ancient and modern cultures. In the past, for instance, farmers have used the state of the night sky as a calendar to determine when to plant crops. The ancient belief in astrology is generally based on the belief that relationships between heavenly bodies influence or convey ...

  4. Night sky - Wikipedia

    en.wikipedia.org/wiki/Night_sky

    The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight , starlight , and airglow , depending on location and timing.

  5. Red sky at morning - Wikipedia

    en.wikipedia.org/wiki/Red_sky_at_morning

    It is based on the reddish glow of the morning or evening sky, caused by trapped particles scattering the blue light from the sun in a stable air mass. [ 5 ] If the morning skies are of an orange-red glow, it signifies a high-pressure air mass with stable air trapping particles, like dust, which scatters the sun's blue light.

  6. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    Purple sky on the La Silla Observatory. [16] The sky can turn a multitude of colors such as red, orange, pink and yellow (especially near sunset or sunrise) and black at night. Scattering effects also partially polarize light from the sky, most pronounced at an angle 90° from the Sun.

  7. Glossary of British terms not widely used in the United States

    en.wikipedia.org/wiki/Glossary_of_British_terms...

    Words with specific British English meanings that have different meanings in American and/or additional meanings common to both languages (e.g. pants, cot) are to be found at List of words having different meanings in American and British English. When such words are herein used or referenced, they are marked with the flag [DM] (different meaning).

  8. Skyglow - Wikipedia

    en.wikipedia.org/wiki/Skyglow

    Skyglow (or sky glow) is the diffuse luminance of the night sky, apart from discrete light sources such as the Moon and visible individual stars. It is a commonly noticed aspect of light pollution . While usually referring to luminance arising from artificial lighting , skyglow may also involve any scattered light seen at night, including ...

  9. Red sky at night - Wikipedia

    en.wikipedia.org/wiki/Red_sky_at_night

    Red sky at night or Red Sky at Night may refer to: An example of weather lore; see Red sky at morning "Red Sky at Night", a song by David Gilmour from the album On an Island "Red Sky at Night", a song by Focus from the album Ship of Memories; Red Sky at Night, 2022 play by Lindsay Rodden for Mikron Theatre Company