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MADRID, SPAIN - MARCH 20: Children use special glasses to look into the sky during a partial solar eclipse outside the Planetario on March 20, 2015 in Madrid, Spain. In Madrid the moon was scheduled to cover approximately 65 percent of the sun for a short period starting at approximately 9:05am. (Photo by Pablo Blazquez Dominguez/Getty Images)

MADRID, SPAIN - MARCH 20:  Children use special glasses to look into the sky during a partial solar eclipse outside the Planetario on March 20, 2015 in Madrid, Spain. In Madrid the moon was scheduled to cover approximately 65 percent of the sun for a short period starting at approximately 9:05am.  (Photo by Pablo Blazquez Dominguez/Getty Images)