The blue supermoon sets behind the Balmoral Clock in Edinburgh, United Kingdom, Aug 31, 2023. (PHOTO / PA VIA AP)

A “blue” supermoon — the biggest and closest full moon of the year — has appeared in the night sky, with people across the globe thrilling to capture the spectacle.

A "blue moon" refers to the second full moon that arises in one single month. 

ALSO READ: Supermoon seen around the world

Following the first full moon in early August, the rare phenomenon — a blue moon and a supermoon occurring at the same time — will appear for around three days through Sept 1. It will not happen again until 2037.

The blue supermoon rises behind the small village of Ujue, northern Spain, Aug 30, 2023. (PHOTO / AP)

Fireworks go off in front of the blue supermoon, Aug 30, 2023, in Chicago, United States. (PHOTO / AP)

The blue supermoon rises over the north tower of the Golden Gate Bridge as seen from the Marin headlands in Sausalito, California, United States, Aug 30, 2023. (PHOTO / SAN FRANCISCO CHRONICLE VIA AP)

A blue supermoon is seen over Delhi's skyline, India, Aug 31, 2023. (PHOTO / AP)

A blue supermoon rises behind the Crescent City Connection in New Orleans, United States, Aug 30, 2023. (PHOTO / THE NEW ORLEANS ADVOCATE VIA AP)

The blue supermoon, the second full moon of a calendar month, rises over Havana, in Cuba, on Aug 30, 2023. (PHOTO / AFP)

The blue supermoon, the second full moon of a calendar month, rises above the Apollo Temple in ancient Corinth, Greece, on Aug 30, 2023. (PHOTO / AFP)

The blue supermoon, the second full moon of a calendar month, rises in the city of Rabat, Morocco, on Aug 30, 2023. (PHOTO / AFP)