The moon rises in Madrid on the eve of a supermoon, Nov. 13, 2016. GERARD JULIEN/AFP/Getty Images

The supermoon sets behind the Philadelphia skyline, Nov. 14, 2016. Joseph Kaczmarek/AP Photo

A man walks by as the supermoon is seen over the National Mall in Washington, D.C., Nov. 14, 2016. Carlos Barria/Reuters

The supermoon rises over Frankfurt am Main, Germany, Nov. 14, 2016. Frank Rumpenhorst/EPA

Kuwaitis observe the "supermoon" spectacle in Kuwait City on Nov. 14, 2016. The moon is at its closest position to earth since 1948, making the moon the brightest in nearly 69 years. Yasser al-Zayyat/AFP/Getty Images

A full moon also known as the supermoon rises over over Jerusalem's Old City walls, Israel, Nov. 14, 2016. Abir Sultan/EPA

A "supermoon" is seen over the sea in Cancun, Mexico, on Nov. 14, 2016. Mauricio Collado/Xinhua via Newscom

The supermoon appears near the Statue of Liberty, Nov. 14, 2016, in New York City. Julio Cortez/AP Photo

A moon rises over the Las Vegas Strip, as seen from the west hills on Monday, Nov. 14, 2016. L.E. Baskow/Las Vegas Sun via AP

An airplane flies between the London Eye and the moon the night before the supermoon in London, Nov. 13, 2016. Toby Melville/Reuters

The supermoon rises behind the Propylaea above the ancient Acropolis in Athens, Nov. 14, 2016. Aris Messinisaris/AFP/Getty Images

A view of the moon against an artistic light display in Nantong, China, Nov. 14, 2016. The moon is at its closest to Earth between 1948 and 2034. FeatureChina/Newscom

The "Supermoon" is seen over Tijuana, Mexico on Nov. 14, 2016. Francisco Vega/AFP/Getty Images

The supermoon rises through the spans of the Sydney Harbour Bridge in Sydney, Nov. 15, 2016. Jason Reed/Reuters

The supermoon rises over the Sydney Opera House in Sydney, Nov. 15, 2016. Jason Reed/Reuters

The supermoon is seen rising behind the Soyuz MS-03 spacecraft at the launchpad at the Russian-leased Baikonur Cosmodrome in Kazakhstan, Nov. 14, 2016. Yuri Kochetkov/EPA

A full moon, also known as the supermoon, rises over Zabi Szczyt in the Tatra Mountains near Zakopane, Poland, Nov. 14, 2016. Grzegorz Momot/EPA

The full moon rises over the Toronto skyline, Nov. 14, 2016. The phenomenon known as the supermoon occurs because the moon follows a varying elliptical orbit around Earth. This week the moon is coming closer to Earth than at any other time since January 1948. Mark Blinch/The Canadian Press via AP

A supermoon rises at sunset over lower Manhattan in New York City, Nov. 13, 2016, as seen from Watchung, New Jersey. Gary Hershorn/Getty Images

The supermoon rises from behind apartment buildings in Beijing, Nov. 14, 2016. The brightest moon in almost 69 years will be lighting up the sky this week. Ng Han Guan/AP Photo

The supermoon is seen over the Galata Tower in Istanbul, Nov. 14, 2016. Yagiz Karahan/Reuters

The supermoon sets behind the Chrysler Building in New York City, Nov. 14, 2016. Lucas Jackson/Reuters