Nature continues to offer these displays whenever conditions align. Ice crystals orient in the upper air. The sun sits low enough for a long path through the atmosphere. Temperature layers form over the sea. An observer looks up at the right moment. The sky then presents a figure of light that seems almost impossible, and the full explanation rests in the quiet cooperation of physics and perception.
A Dazzling Light Appeared Above Ikaria, Greece—What Created the Mysterious Shape in the Sky?