On July 19, 2013, you, me and everybody photobombed NASA's shot of Saturn's rings. That's us all squished up on that dot of light that the white arrow is pointing to.
(Right-click and open in a new tab to get the full size 1920x1080 version from NASA).
The photo was taken from NASA's Cassini spacecraft looking backward, and it captured our planet Earth and its moon in the same frame as Saturn's rings. It is one panel in a mosaic of 33 that cover the entire Saturn ring system, including Saturn itself.
Source and more details: https://www.nasa.gov/mission_pages/cassini/multimedia/pia17171.html#.V49y1Lh96Hs