The SPA basin, a colossal scar stretching across the moon's far side, was likely formed during a barrage of asteroids pummeling much of the solar system within the first few hundred million years ...

Chinese scientists, using lunar soil samples brought back by Chang'e-6, have determined that the Moon's oldest and largest impact crater, the South Pole-Aitken (SPA) Basin, was formed 4.25 billion ...

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.