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GLASGOW, SCOTLAND - MARCH 20: School children use special glasses to look into the sky at a partial solar eclipse on March 20, 2015 in Glasgow, Scotland. Over Central Europe the moon was scheduled to cover approximately 75% of the sun for a short period starting at approximately 9:30am. The next solar eclipse will not occur until 2021. (Photo by Jeff J Mitchell/Getty Images)

GLASGOW, SCOTLAND - MARCH 20:  School children use special glasses to look into the sky at a partial solar eclipse on March 20, 2015 in Glasgow, Scotland. Over Central Europe the moon was scheduled to cover approximately 75% of the sun for a short period starting at approximately 9:30am. The next solar eclipse will not occur until 2021.  (Photo by Jeff J Mitchell/Getty Images)