Gavin Hellier / Timelapse of the Aurora Borealis over a fjord, Troms, Norway, March 2016. Hellier

Michio Hoshino / Aurora borealis over forest, Alaska

Jack Dykinga / Twisted Saguaro cactus (Carnegiea gigantea) with the Milky Way and distant glow of Phoenix lights, Sonoran Desert National Monument, South Maricopa Mountains Wilderness, Arizona, USA. September 2017.

Terry Whittaker / Timelapse of the Aurora Borealis, Hornstrandir, West Fjords, Iceland. April 2016

Dietmar Nill / European hedgehog (Erinaceus europaeus) in road at night, with approaching car headlights, Mossingen, Baden-Wurttemberg, Germany, October.

Denis-Huot / Cheetah (Acinonyx jubatus) resting with rainbow behind it, Masai-Mara Game Reserve, Kenya. September.

Ingo Arndt / Magnetic termite (Amitermes meridionalis) aerial view of mounds in grassland, Litchfield National Park, Northern Territory, Australia.

SCOTLAND: The Big Picture / Scots pine (Pinus sylvestris) with Northern lights / Aurora borealis lighting up the night sky in background, Monadhliath Mountains, Cairngorms National Park, Scotland, UK, October 2015.

Markus Varesvuo / Snowy owl (Bubo scandiaca) female, with lights behind, Canada, February.

Floris van Breugel / The first rays of sunshine above the Sierra Crest, illuminating granite, Mitre Basin, Sierra Nevada, Sequoia National Park, California, USA, August

Floris van Breugel / Ocotillo (Fouquieria splendens) in morning sun, Anza-Borrego State Park, California, USA February

Pete Oxford / Whale Shark (Rhincodon typus) with scuba diver, Cenderawasih Bay, West Papua, Indonesia.