Charlie Summers / The Pleiades or Seven Sisters (M45), a star cluster in the constellation Taurus, taken 26 September 2014 from Eastern Colorado. Taken with digital focus stacking.

Juergen Freund / Stars facing north towards constellation Perseus with Perseid meteor shower, above farming fields in the Atherton Tablelands, Far North Queensland. August 14, 2013 4am, composite image.

Oriol Alamany / View of the night sky looking up through trees, with stars and the Milky Way, Mopani, Kruger National Park, Transvaal, South Africa, September.

Jack Dykinga / Eroded rock formation known as the 'Tres Maries', in the Valle de la Luna. One million year old composition of gravel, clay, salt, gems and quartz, against The Milky Way and Southern Cross in the nigh...

Charlie Summers / Stars in the southern hemisphere from the Kalahari Desert. The star in the middle of the rotation is the Southern Poler (Sigma octantis) It is one degree off true south. Southern Africa

Michio Hoshino / Aurora borealis showing the North Star and Big Dipper, Alaska

Martin Dohrn / The Southern Cross star constellation shining above Ballenites trees in Masai Mara, Kenya. Starlight image intensifier camera image taken with no artificial light.

Pascal Tordeux / Timelapse of stars, showing Scorpius, Sagittarius and the planet Mars, with airplanes, Alpes de Haute Provence, France, August.

Claudio Contreras / Boojum tree (Fouquieria columnaris) at night with the Orion Constellation, Sonoran Desert, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March

Yva Momatiuk & John Eastcott / Milky Way over tree, Namib Desert, Namibia

Yva Momatiuk & John Eastcott / Milky Way over tree, Namib Desert, Namibia

Yva Momatiuk & John Eastcott / Baobab (Adansonia sp) trees and Milky Way, Kubu Island, Makgadikgadi National Park, Botswana