It must be realized that the so called "dark side of the moon" is only dark while we on Earth are seeing the reflected sun light during the moon's phases.
So, it stands to reason that during a New Moon phase when the moon is on the sunny side of Earth, the dark side is actually illuminated by the sun . . . during that time span I'm sure NASA has fabulous images of the side that never faces Earth!
Makes sense right?
Ha, But we never get to see them.