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
The chair of the U.N. panel of climate scientists has been accused of sexual misconduct.
ByAlister Doyle, Reuters
India's Rajendra Pachauri quit as chair of the U.N. panel of climate scientists on Tuesday, ending 13 turbulent years in charge of the Nobel Peace Prize-winning group, after a sexual harassment complaint against him.