A paper published by the American Geophysical Union (AGU) claims that the structure below said crater - named the South-Pole Aitken (SPA) Basin - weighs 480 billion pounds. Lead author of the ...
Scientists have long sought to determine the age of the moon's South Pole–Aitken (SPA) basin, the largest and oldest known impact crater on the lunar surface. Recently, a research team led by Prof.