| The last total solar eclipse  of the 
            20th century occurred on August 11, 1999. It began when the Moon's 
            shadow touched the Earth at approx. 09:30:57 UT, about 300 km (186 
            mi) south of Nova Scotia in the North Atlantic. The umbral (totality) 
            path swept across central Europe, the Middle East, and India before 
            ending in the Bay of Bengal at approximately 12:36:23 UT.  A solar eclipse occurs when the Moon passes 
            between the Sun and Earth blocking the Sun from view. Partial solar 
            eclipses are more common than total solar eclipses. During a total 
            solar eclipse, the Moon completely blocks sunlight from striking an 
            area on the Earth's surface. The Moon's shadow is called the umbra. 
            As the angle between Earth, Sun and Moon changes, the umbra moves 
            across the Earth's surface. On Earth, total darkness only occurs in 
            areas on the Earth's surface that fall in the umbral path.  | 
               
                | The Answer: Solar Eclipse
 
   Note:
 Diamond = image view,
 Line = umbral path
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