Snapshots of an expanding flame in different environments.
A storm at Saturn's North Pole.
A composite image showing a collection of single-cell fresh water algae, desmids.
Light echoes from Southern hemisphere star RS Puppis.
Von Karman vortices over the Juan Fernandez Islands in the Pacific Ocean.
Three cubesats are dropped from the Japanese segment of the International Space Station.
A baby Olinguito, a new carnivorous mammal discovered in Colombia this year.
Perseid meteor shower seen from Snowy Range in Wyoming.
A white-eyed parakeet flying in front of the Iguaçu Falls in Argentina.
Northern lights over the icebergs in Jökulsárlón, Iceland.
Thousands of great white pelicans refueling in Israel.
The Beni River in the north of Bolivia, seen from the ISS.
A frog is captured during the launch of Nasa's LADEE mission.
Silverside fish swirl to escape a potential predator.
Mount Etna blows a smoke ring (actually water vapour, not smoke).
Underwater polar bear.
Snow in the Middle East.
Lightning strikes Berlin's Fernsehturm tower.
A 250x magnified marine diatom.
Saturn, Earth and the moon (if you look very closely).
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