Astronomy Picture of the Day . Night Launch of the Space Shuttle Endeavour . ... This fairly common sight occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. ... It follows a young crescent Moon, with brilliant planet Jupiter to its left, as they set together in the western sky. ... Dust Storm on Mars . ... What is this strange object? ... Mars, on the far upper left, is the brightest object in the above picture. Shepherd Moon Prometheus from Cassini . ...