Blue moons" around the world
Observed for the first time in about 3 years
People watch a full moon as it rises over the skyline from Haneda Airport Terminal 2 on July 31, 2015, Tokyo, Japan. This is the second full moon in July and is known as a Blue Moon. There hasn't been a second full moon in a month since August 2012 and there won't be another one until January 2018. (Photo by Rodrigo Reyes Marin/AFLO)