Lunar samples are a gift that keeps on giving! By comparing these samples with analyses of Apollo lunar samples and others returned from the near side of the Moon, scientists can (for the first time in history) examine how the two hemispheres evolved. A recent analysis has provided a new window into the bombardment history of the Moon, challenging decades of thinking about the timing and intensity of those impacts. Based on their analysis, the team found evidence of impact events spanning from about 4.33 to 1.13 billion years ago, allowing them to reconstruct more than three billion years of lunar impact history. Their findings not only address a major part of the Moon's evolutionary history, but also Earth's.