Chang’e-6 Lunar Samples Challenge Late Heavy Bombardment Theory
New analyses of these rocks, published July 23, 2026, reveal a gradual decline in asteroid impacts rather than a sudden cataclysm, challenging the Late Heavy Bombardment theory. Decades of planetary science rested on a neat, dramatic timeline: a sudden spike of asteroid violence that battered the solar system roughly 3.9 billion years ago. That hypothesis, … Read more