Looking for a sky event this week? Check out our full Sky This Week column.  January 11: Psyche moves north of Aldebaran Io transits Jupiter, showing us how quickly our view can change — now that we are a few days past opposition, the moon and its shadow won’t quite overlap, but instead Io’s shadow will now Continue reading "The Sky Today on Monday, January 12: Io’s post-opposition transit" The post The Sky Today on Monday, January 12: Io’s post-opposition transit appeared first on Astronomy Magazine .