People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. Yi Peng refers to the full moon day in the second month according to the Lanna lunar calendar (the twelfth month according to the Thai lunar calendar). Swarms of Lanna-style sky lanterns are launched into the air where they resemble large shoals of giant fluorescent jellyfish gracefully floating through the sky. The festival is meant as a time for tham bun, to make merit. Khom loi are made from a thin fabric, such as rice paper, stretched over a bamboo or wire frame, to which a candle or fuel cell is attached. When the fuel cell is lit, the resulting hot air is trapped inside the lantern and creates enough lift for the khom loi to float up into the sky. (Photo by Athit Perawongmetha/Reuters)





People hold up floating lanterns before they release during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People hold up floating lanterns before they release during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





Floating lanterns are pictured during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





Buddhist monks hold candles during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People release floating lanterns during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





Buddhist monks pray during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)





People hold up floating lanterns before they release during the festival of Yee Peng in the northern capital of Chiang Mai, Thailand November 14, 2016. (Photo by Athit Perawongmetha/Reuters)