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Space/Science » in reply to Fun.

re: Very high!

Raoul — 6/15/2005 6:55:28 PM (archived)

Apparently, those clouds are made of ashes from either micrometeorites or volcanic eruptions.
They're 50 km high!

Raoul

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The whole thread (9 posts)

Noctilucent clouds - Raoul - 6/15/2005 5:28:49 AM
- Noctilucent cloud season beings - LJK - 6/19/2005 2:27:52 AM
- Have you seen this fellow's tornado photos? - LJK - 6/16/2005 2:58:49 AM
- Fun. (n/t) - Bowser - 6/15/2005 6:20:06 AM
  - re: Very high! - Raoul - 6/15/2005 6:55:28 PM
    - re: Why do they glow? (n/t) - Johannes - 6/16/2005 1:17:48 AM
      - Because they're so happy - ljk - 6/16/2005 2:23:56 PM
      - re: Because they are still lit by the Sun (while the Sun has set on the ground and for the regular clouds) (n/t) - Raoul - 6/16/2005 5:30:07 AM
        
        All-sky Relative Opacity Mapping Using Night Time Panoramic Images - ljk - 6/16/2005 2:17:27 PM

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