Fireworks illuminate the sky over downtown Seoul during the International fireworks festival 2007 at Han River on October 13, 2007 in Seoul, South Korea. The United States, Japan and South Korea have team was attending the festival. (Photo by Chung Sung-Jun/Getty Images)

Michael Bath, from McLeans Ridges in New South Wales, Australia, estimates that in his lifetime he has taken more than 3,500 images of lightning bolts illuminating the sky. Photo: Alstonville, New South Wales, Australia – January 8, 2003. (Photo by Michael Bath/Caters News)

New Year's Eve fireworks display illuminates the sky over the Dom Tower on January 01, 2012 in Utrecht, Netherlands. The Dom tower is with 112.5 metres high the tallest church tower of the Netherlands. Built in Gothic-style, the tower, part of the Cathedral of Saint Martin, is the symbol of the city of Utrecht. (Photo by Jasper Juinen/Getty Images)

These Northern Lights “rainbows” have turned the sky greener than the Earth below. Vitaly Istomin, 26, spent several nights in freezing conditions under the stars in northern Russia’s Khibiny Mountains to capture the aurora’s “rainbows”. (Photo by Vitaly Istomin/Caters News Agency)

Hot air balloons fly over the sky in Chiang Mai province, northern Thailand, December 6, 2014. The two-day International Balloon festival 2014 featuring balloon pilots from Germany, Spain, Netherlands, Britain, and Czech Republic is held on December 06-07 2014 to celebrate Thai King Bhumibol Adulyadej's 87th birthday and also aimed to promote the tourism industry in Chiang Mai northern city. (Photo by Pongmanat Tasiri/EPA)

An animatronic polar bear visits the London Underground on January 23, 2015, to mark the launch of Fortitude, Sky Atlantic&Otilde's new drama starring Stanley Tucci, Michael Gambon and Christopher Ecclestone, which premieres on Thursday 29th January at 9pm. A team of 19 Hollywood prop specialists spent six weeks designing and building the realistic replica animal with six to eight people working on the costume at any one time, using over 60 different materials. (Photo by David Parry/PA Wire)

Fireworks from Japan light up the sky at the start of the 6th Pyro musical competition Saturday, February 7, 2015 at the Mall of Asia shopping complex at suburban Pasay city south of Manila, Philippines. The fireworks competition, which runs for six consecutive weekends, features entries from 11 countries as host country the Philippines, Canada, United States, Japan, United Kingdom, Brazil, Portugal, China, Mexico, Italy, The Netherlands and Sweden, with Canada winning the championship last year. (Photo by Bullit Marquez/AP Photo)