A super blue blood moon behind a mountain is seen from Longyearbyen, Svalbard, Norway, on January 31, 2018.
A super blue blood moon behind a mountain is seen from Longyearbyen, Svalbard, Norway, on January 31, 2018.

A full moon 'supermoon' is pictured next to the st
A full moon 'supermoon' is pictured next to the statue of Christ the Redeemer in Rio de Janeiro, Brazil, Feb. 1, 2018.

The super blue blood moon sets before dawn as lava
The super blue blood moon sets before dawn as lava cascades down the slopes of Mount Mayon volcano during a mild eruption as seen from Sto. Domingo township, Albay province around 340 kilometers (200 miles) southeast of Manila, Philippines, Feb. 1, 2018.

A super blue blood moon rises behind the 2,500-yea
A super blue blood moon rises behind the 2,500-year-old Parthenon temple on the Acropolis of Athens, Greece, Jan. 31, 2018.

A full moon "supermoon" rises in between four towe
A supermoon rises in between four towers in a skyscrapers area in Madrid, Spain, Jan. 31, 2018.

A super blue blood moon behind a mountain is seen
A super blue blood moon behind a mountain is seen from Longyearbyen, Svalbard, Norway, Jan. 31, 2018.

The "Super Blue Blood Moon" sets behind the Staten
The "Super Blue Blood Moon" sets behind the Staten Island Ferry, seen from Brooklyn, New York, Jan. 31, 2018.

FILE - A telecommunications tower is pictured as t
The telecommunications tower' is pictured as the moon passes into the earth's shadow during a lunar eclipse as seen in in Johannesburg, South Africa, Jan. 31, 2018.

Stargazers use telescopes to observe the moon alon
Stargazers use telescopes to observe the moon along the Victoria Habour in Hong Kong, Jan. 31, 2018.

The moon rises over Kadam mountain in Nakapiripiri
The moon rises over Kadam mountain in Nakapiripirit town, northeastern Uganda, Jan. 31, 2018, during the lunar phenomenon referred to as the "super blue blood moon".

A partially-eclipsed super blue blood moon sets be
A partially-eclipsed super blue blood moon sets behind the Salesforce Tower, Jan. 31, 2018, in San Francisco, California.

A full moon rises behind blocks of flats in north
A full moon rises behind blocks of flats in north London, Britain, Jan. 31, 2018.

The moon turns a reddish hue as it passes through
The moon turns a reddish hue as it passes through the earth's shadow during a lunar eclipse as seen in Gauhati, India, Jan. 31, 2018.

A "super blood blue moon" is seen during an eclips
A "super blood blue moon" is seen during an eclipse at a temple in Bangkok, Thailand, Jan. 31, 2018.

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