For those of you in the mid-northern latitudes of North America, you’ll be able to watch Mars disappear behind the dark disc of the crescent moon as the moon slides into place between Earth and the red planet.
Look to the southeast, one hour before sunrise on the morning of Tuesday the 18th.
From around the world, these three planets line up across the early morning sky, with Mars at top, and Saturn at bottom. The brightest of the threesome – the king planet Jupiter – resides in between Mars and Saturn.