A full moon is seen in Islamabad, Pakistan on Jan. 29. The full moon this weekend, called the wolf moon, will be the brightest and biggest of the year. B.K.Bangash/AP
A full moon rises in the night sky during a lunar eclipse above the golden domes of the Orthodox Monastery of Caves in Kiev, Ukraine, on May 4, 2004. Efrem Lukatsky/AP/File
An airplane is silhouetted against a full moon in the sky over London on Jan. 1. Suzanne Plunkett/Reuters/Newscom
A Sri Lankan Buddhist devotee offers prayers during a full moon at the Kelaniya Temple in Kelaniya, Gampaha district on Jan. 29. The predominantly Buddhist country marks every full moon as a key religious holiday or Poya Day. Indranil Mukherjee/AFP/Newscom/File
A flock of birds takes flight over the City of Milford, Ohio as a full moon rises in the eastern sky. Ernest Coleman/The Cincinnati Enquirer/AP
A blue moon, or the second full moon of the month, is seen over a church in Amman, Jordan on Dec. 31, 2009 Ali Jarekji/Reuters
The moon rises behind bride Kailey Wilson as she gets a hand from her mom Maurene while having her picture taken on Dec. 11, 2008 in Lethbridge, Alberta, Canada. Ian Martens/The Canadian Press/Lethbridge Herald/AP/File
A rare blue moon is pictured in Los Angeles on Jan. 1. A Most years have twelve full moons which occur approximately monthly, but the blue moon occurs every two or three years. Qi Heng/Xinhua/Newscom
A full moon sets behind a hillside on Jan. 1, in Fairbanks, Alaska Zuma/Newscom
NASA scientists shot a two-minute video of a lunar flyby from a height of only 6 miles above the moon's surface, 3 days before crashing the spacecraft near the moon's north pole.
A NASA probe recorded a spectacular flyover video of the moon's far side shortly before intentionally slamming into a lunar mountain last month.
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