Scientists have called for NASA to mount a robotic return mission to the far side of the moon to collect samples from the solar system’s own “big dig” – the oldest and deepest impact crater basin known. This giant site is known as South Pole-Aitken Basin.
South Pole-Aitken basin is expected to offer clues not only about early lunar evolution, but Earth’s formative years too. Studying lunar specimens dug up from this site and flung back to labs would bring back memories. That is, time capsule clues of just how severe and exactly when early Earth and Moon found themselves on a celestial hit list, suffering through a late and heavy bombardment of asteroids and comets.