Astronomy Picture of the Day . Trapezium: Teardrops in My Skies . ... WFPC2 , HST , NASA Explanation: Sometimes the unexpected comes in a familiar shape. In this picture , the seemingly familiar teardrop-shaped object just right of center is actually an unusually situated disk of gas and dust . In fact, the teardrop is about the size of our own Solar System and is racing against time to condense and form planets. ... Publications with keywords: Orion - trapezium - star formation . ...