Looking for a sky event this week? Check out our full Sky This Week column.  January 13: Ganymede’s turn to transit Ganymede is transiting Jupiter with its shadow as January 14 opens subsequently in each time zone across the U.S. After the moon and its shadow begin their transits at 12:34 A.M. and 12:58 A.M. EST, respectively, Continue reading "The Sky Today on Wednesday, January 14: Iapetus at inferior conjunction" The post The Sky Today on Wednesday, January 14: Iapetus at inferior conjunction appeared first on Astronomy Magazine .