SCOTLAND: The Big Picture / Lone Scot's pine tree (Pinus sylvestris) and star trails with the north star, Abernethy forest, Cairngorms National Park, Scotland, UK.

Juergen Freund / Timelapse of Boab trees (Adansonia gregorii) at night, with star trails, Kimberley, Western Australia, 2016.

Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador

Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) group wallowing in mud at night, Alcedo Volcano, Isabela Island, Galapagos Islands, Ecuador

Alex Mustard / Portrait of a Nudibranch (Flabellina pellucida) on a kelp frond with star trails. Gulen, Norway. North East Atlantic Ocean.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes, and star trails, Namib desert, Sossusvlei, Namibia. Composite.

Solvin Zankl / English oak tree (Quercus robur) silhouetted against orange sky with star trails, Nauroth, Germany, October.

Jeff Vanuga / Night stars over Yosemite Falls, Yosemite National Park, California, USA, May 2014.

Bence Mate / Star trails above forest at night, Hungary.

Luciano Candisani / Jacare Caiman (Caiman yacare) group in wetland at night, Pantanal, Brazil

Sven Zacek / Ural owl (Strix uralensis) flying to nest with star trails in sky above, Estonia, May. Winner of the Birds category in the Melvita Nature Images Awards competition 2014.

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