(01 of11)
Open Image ModalGLASGOW, SCOTLAND - MARCH 20: School children use protective 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)
(02 of11)
Open Image ModalPeople watch wearing solar protection glasses during the partial phase of a solar eclipse after totality as seen from a hill beside a hotel on the edge of the city overlooking Torshavn, the capital of the Faeroe Islands, Friday, March 20, 2015. A blanket of clouds in the Faeroe Islands blocked thousands of people there from experiencing the full effect of the total eclipse. The clouds then cleared after totality. (AP Photo/Matt Dunham)
(03 of11)
Open Image ModalGLASGOW, 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)
(04 of11)
Open Image ModalMUNICH, GERMANY - MARCH 20: People use special glasses to look into the sky at a partial solar eclipse on March 20, 2015 in Munich, Germany. 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 Alexander Hassenstein/Getty Images) (credit:Alexander Hassenstein via Getty Images)
(05 of11)
Open Image ModalPeople watch wearing solar protection glasses during the partial phase of a solar eclipse after totality as seen from a hill beside a hotel on the edge of the city overlooking Torshavn, the capital of the Faeroe Islands, Friday, March 20, 2015. A blanket of clouds in the Faeroe Islands blocked thousands of people there from experiencing the full effect of the total eclipse. The clouds then cleared after totality. (AP Photo/Matt Dunham)
(06 of11)
Open Image ModalMUNICH, GERMANY - MARCH 20: A school class on Marienplatz uses special glasses to look into the sky at a partial solar eclipse on March 20, 2015 in Munich, Germany. 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 Joerg Koch/Getty Images) (credit:Joerg Koch via Getty Images)
(07 of11)
Open Image ModalPeople use protective glasses and filters on telescopes as they gather in front of a planetarium in Berlin to catch a glimpse of a solar eclipse on March 20, 2015. A partial eclipse of varying degrees is visible, depending on weather conditions, across most of Europe, northern Africa, northwest Asia and the Middle East, before finishing its show close to the North Pole. AFP PHOTO / STEFFI LOOS (Photo credit should read STEFFI LOOS/AFP/Getty Images) (credit:STEFFI LOOS via Getty Images)
(08 of11)
Open Image ModalPeople use protective glasses to watch a solar eclipse on March 20, 2015 in Toulouse. All eyes were on the skies early for a solar eclipse set to offer spectacular views, from selected airplane seats, European countries with the right weather and a remote Arctic archipelago. AFP PHOTO/REMY GABALDA (Photo credit should read REMY GABALDA/AFP/Getty Images) (credit:REMY GABALDA via Getty Images)
(09 of11)
Open Image ModalMUNICH, GERMANY - MARCH 20: Students and teachers of the Oskar-von-Miller Highscool Munich use special glasses to look into the sky at a partial solar eclipse on March 20, 2015 in Munich, Germany. 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 Alexander Hassenstein/Getty Images) (credit:Alexander Hassenstein via Getty Images)
(10 of11)
Open Image ModalA young astronomer uses protective glasses to catch a glimpse of a solar eclipse on March 20, 2015 in Berlin. A partial eclipse of varying degrees is visible, depending on weather conditions, across most of Europe, northern Africa, northwest Asia and the Middle East, before finishing its show close to the North Pole. AFP PHOTO / STEFFI LOOS (Photo credit should read STEFFI LOOS/AFP/Getty Images) (credit:STEFFI LOOS via Getty Images)
(11 of11)
Open Image ModalAmanda, from Italy, runs as she looks up to the sun wearing protective goggles during a solar eclipse in Barcelona, Spain, Friday, March 20, 2015. (AP Photo/Emilio Morenatti) (credit:ASSOCIATED PRESS)