When the moon is close to the horizon, the sunlight reflected from its surface must travel further through Earth's atmosphere to reach an observer compared to when it's overhead. This process scatters the shorter, bluer wavelengths of light, while allowing the longer, redder ones through, which can give the moon a yellow, or rusty hue.

The Flower Moon will also look full in the days before and after its peak. If you're lucky and the clouds cooperate, you might even spot the star Antares, the fiery-orange heart of Scorpius, twinkling just below and to the left of the Moon.

Tonight's full moon is the May flower moon, shining for three days with a view of Venus. Here's what to know about May's special full moon and when to watch. A full moon is one of the lunar phases where the entire visible side of the moon,