New research published in the Earth and Planetary Science Letters journal suggests the moon's oldest crater, the South Pole-Aitken basin, may be round, as opposed to the oval shape than scientists previously believed it to be.
The circular diameter means the impact that created the South Pole-Aitken basin, which stretches nearly 1,250 miles (2,000 kilometers) across the far side of the moon, may have been much deeper. This new understanding could give scientists important geological resources that reveal early lunar history.
