Niall Benvie / Green aurora borealis light in night sky, Senja, Norway, February 2012

Colin Varndell / Detail of dead wood from English / Pendunculate oak tree (Quercus robur) New Forest, Hampshire, UK

Bryan and Cherry Alexander / During a Spring storm, blowing snow swirls around a Nenets reindeer herders' winter camp on the tundra near Tambey. Yamal Peninsula, Western Siberia, Russia, March 2011

Bryan and Cherry Alexander / During a Spring storm, blowing snow swirls around a Nenets reindeer herders' winter camp on the tundra near Tambey, Yamal Peninsula, Western Siberia, Russia, March 2011

Ben Hall / 2020VISION / Abstract image looking up through woodland canopy, The National Forest, Central England, UK, November 2010

Nick Upton / Overview of waterfalls on the Mreznica river, overhung by deciduous trees, Zvecaj, Karlovacka, Croatia, July 2010.

Willem Kolvoort / Floating algae (Algae) in garden pond, Holland

Gavin Hellier / Vermillion Cliffs NM Paria Canyon Arizona USA

Gavin Hellier / Petrified Dunes, Vermillion Cliffs NM, Paria Canyon, Arizona, USA

Barry Bland / Women's Single Sculls, Olympic Games, Athens, Greece, 15 August 2004. Editorial Use Only.

Barry Bland / Men's single sculls, Olympic Games 2004, Athens, Greece. 14th August 2004. Editorial Use Only.

Yva Momatiuk & John Eastcott / Swirls, layers and folds of Navajo sandstone create wild rocky landscape on Colorado Plateau, Paria Wilderness Area, autumn, Arizona