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    Explanations for UFO sightings
    

    China Daily | Updated:  2008-10-21 07:49
 



    



    

    Here are 10 possible explanations for UFO sightings.
    


    1) Weather balloons - Gas-filled balloons that measure conditions in the upper atmosphere to help forecasters.
    


    2) Clouds - Saucer-shaped or "lenticular" clouds that form at high altitudes have been confused with UFOs.
    


    

    Explanations for UFO sightings
    

    

    


    

    


 

    


    


 

    

    


    
 
 



    


    

    



    


    

    

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