The Moon’s biggest scar does not sit quietly in the background. The South Pole-Aitken basin is a vast impact structure more than 2,000 kilometers wide on the lunar far side.
A subtle chemical trace locked inside ancient lunar samples is reshaping how scientists understand the Moon’s earliest history, pointing to the unexpected presence of oxygen during its formation.
A half century after NASA's Apollo 17 lunar module lifted off the moon's northeastern near side quadrant, planetary scientists still don't completely understand when or how our moon first formed. They ...
The Moon's biggest scar does not sit quietly in the background. The South Pole-Aitken basin is a vast impact structure more than 2,000 kilometers wide on the lunar far side. It has long looked ...