About 13 times each century, the closest planet to the sun passes between Earth and our star, treating us to a rare transit event.
Your next chance to catch this astronomical wonder is Monday, Nov. 11.
Why are these Mercury transits so rare?
Mercury's distance from the sun can vary quite a bit, and its orbit has an incline of 7 degrees compared with ours.
The transit will be visible for a large part of the globe, including most of North America, South America, Europe and Africa.
Mercury appears as a dainty dark spot moving across the sun, so your regular solar eclipse glasses won't work here.