[Jonty30]

What is probably most surprising about Saturn is that it may be blue, like Neptune and that you can actually see earth with the visible eye, at least according to the photograph.

You’d think that Earth would be too small from that distance.

[aruanan]

You’d think that Earth would be too small from that distance.

You can see Saturn from Earth with the naked eye. Earth, though much smaller than Saturn, is much closer to the sun and, with a high albedo, is reflecting a lot more light into space per unit area than anything farther out in the solar system. We also don't know the length of exposure, either. So, it's possible that could be Earth in the photo.