David Tipling / Pied wagtails (Motacilla alba yarrellii) silhouetted against the moon, roosting in tree in shopping centre. Kent, UK, December

Oriol Alamany / Solar eclipse 63% on 4 January 2011, seen from Barcelona, Spain

Ashley Cooper / Scientist taking measurements as part of a study to measure the speed of the Russelll Glacier near Kangerlussuag Greenland, July 2008

Ashley Cooper / Scientist using GPS equipment measuring the speed of the Russelll Glacier near Kangerlussuag, Greenland, July 2008

Ashley Cooper / A 35 Kw solar panel system on a barn roof on a farm in Leicestershire, UK with sheep and lambs in the foreground. March 2012

Ashley Cooper / The Solar office on the Doxford International Business Park, Sunderland, North East, UK. The building has many green features including 73 Kw photo voltaic panel system on the front of the building. D...

Ashley Cooper / Dalit woman / untouchable woman in her hut, illuminated by an electric light, powered by an A4 sized solar panel, that charges a battery, and enables her to have light. Karnataka, India. December 2013

Ashley Cooper / Dalit woman / untouchable woman in her hut, illuminated by an electric light, powered by an A4 sized solar panel, that charges a battery, and enables her to have light. Karnataka, India. December 2013

Aflo / Y-12106 Close up of the Sun with sun flare in space

Aflo / Y-11903 Milky Way galaxy, the brightest part extending from Scutum to Scorpio, through Sagittarius

Aflo / Y-11402 Planet Earth from space

Aflo / Y-12003 Hyakutake Comet moving across night sky