Mars will seem to disappear behind the full wolf moon Monday for many sky-gazers. Throughout January, also look up to see Venus, Saturn and Jupiter in the night sky.

The full moon is called the wolf moon because of the idea that during January’s long, cold and dark nights, wolves make sure everyone can hear them. Like many other moons, it also has other names. Some call it the “Ice Moon,” “Old Moon” or the moon after Yule.