Explanation:
This image of Saturn could not have been taken from Earth.
No Earth based picture could possibly view the night side of
Saturn and the corresponding
shadow cast across Saturn's rings.
Since Earth is much closer to the Sun than Saturn,
only the day side of the planet is visible from the Earth.
In fact, this image mosaic was taken in January by the robotic
Cassini spacecraft now orbiting Saturn.
The beautiful rings of Saturn are seen in full expanse, while
cloud details are visible near the night-day
terminator divide.
