This photo reveals what might be mistaken for a snowflake, however, according to NASA it is something quite different, and created as an experiment in the Destiny laboratory aboard the International Space Station.

Looking for all the world like a snowflake, this is actually a close up view of sodium chloride crystals. The crystals are in a water bubble within a 50-millimeter metal loop that was part of an experiment in the Destiny laboratory aboard the International Space Station and was photographed by the Expedition 6 crew. Image Credit: NASA