A crescent moon will appear alongside the bright stars Castor and Pollox to form a lopsided grin in the night sky on May 29.
Skywatchers in the U.S. will find the cosmic smile hanging above the western horizon about 45 minutes after the sun has set — around this time, the brightest stars will become visible in the darkening sky. The moon's slender crescent will be located a little over 20 degrees above the horizon, taking the appearance of a lopsided grin. Castor (right) and Pollux (left) will be visible roughly 5 degrees above the shadowed lunar disk, forming the "eyes" of the celestial emoji.
