Yukihiro Fukuda,Yukihiro Fukuda / Japanese fireflies (Luciola cruciata) in flight at night, endemic species, Yaku-shima UNESCO World Heritage Site, Kagoshima, Japan, May

Paul D Stewart / Aerial view of Grand Prismatic thermal spring in Yellowstone National Park, USA. The bright colours are natural, coming from thermophile bacteria in the water. People can be seen walking on the raised...

Inaki Relanzon / Dolmen d'Eyna at night, with a long exposure capturing star trails. Eyne, Pyrenees, France, September 2010.

Juergen Freund / Timelapse of Fireflies (Lampyridae) at dusk, Atherton Tablelands, North Queensland, Australia.

Juergen Freund / Timelapse of Fireflies (Lampyridae) at dusk, Atherton Tablelands, North Queensland, Australia.

Kirkendall-Spring / Sunlight streaking through the trees along the Appelton Pass Trail, Olympic National Park, Washington, USA, April 2018.

Kirkendall-Spring / Sunlight streaking through the trees along the Appelton Pass Trail, Olympic National Park, Washington, USA, April 2018.

Ernie Janes / Contrails lit by pink dawn light, North Norfolk, England, UK, December.

Nick Turner / Marsh marigold / King cup (Caltha palustris) flowering by marshy stream on the Limestone Link trail, St.Catherine Valley, South Gloucestershire, UK. April 2015.

Jeff Vanuga / Moonbow at night with star trails, Lower Yosemite Falls, Yosemite National Park, California, USA, May 2014.

Chien Lee / Glow Worm (Lamprigera sp) neotenic female leaving trail of green light, Gunung Penrissen, Borneo, Malaysia

Yukihiro Fukuda / Light trails of Japanese fireflies (Luciola cruciata) at night, Ichikawa-river, Asago, Hyougo, Japan, July