Cloud animal A cloud over the Sahara Desert - and its shadow - are seen from the International Space Station on Feb. 17. “There is an undeniable beauty in human imagination,” Hadfield wrote in a Twitter tweet. “What do you see in this Saharan cloud?” Chris Hadfield / CSA via Twitter
Doug Perrine captured these stunning photographs in the Maldives. The particular location (Vaadhoo Island) has a concentrated population of bioluminescent phytoplankton. Bioluminescence is a natural chemical reaction which occurs when a micro-organism in the water reacts with oxygen. When washed ashore by the tides, the phytoplankton’s chemical energy is turned into light energy, illuminating the waves.
The Igloo Village of Hotel Kakslauttanen in Finland boasts 20 thermal glass igloos that allow visitors to enjoy incredible views of the Aurora Borealis from the warmth and comfort of their own geodesic hut.