Late Heavy Bombardment
c. 4.0-3.8 Billion years ago · Prehistoric
Between approximately 4.0 and 3.8 billion years ago, Earth experienced intense asteroid and comet impacts known as the Late Heavy Bombardment. Evidence from impact craters on the Moon and other solar system bodies supports this period, which marks the transition from the Hadean to the Archean Eon. These impacts delivered water and organic compounds to Earth. Recent studies suggest the impacts may have created hydrothermal environments that provided refuge for early life forms and accelerated chemical evolution. This period shaped Earth's geology and chemical composition.
Key Figures
Graham RyderBarbara A. CohenClark R. Chapman
Locations
MoonMare ImbriumMare SerenitatisMare Nectaris
Topics
early EarthHadean EonArchean Eonasteroid impactssolar system formation
Connected Events — 4 Connections
The Orientale Basin impact represents one of the final major crater-forming events during the Late Heavy Bombardment period, providing crucial evidence for the timing and intensity of this solar system-wide phenomenon Formation of Lunar Orientale Basin During Late Heavy Bombardment
The Moon-forming impact created Earth-Moon system dynamics that influenced the orbital mechanics and gravitational perturbations affecting asteroid trajectories during the subsequent Late Heavy Bombardment period Moon-Forming Giant Impact
This intense period of meteorite impacts around 3.8-4.1 billion years ago was the primary mechanism delivering organic compounds to early Earth's surface Delivery of Organic Compounds via Meteorites
The Late Heavy Bombardment delivered additional water via comets while partially vaporizing the existing ocean, though the ocean persisted through the bombardment Earth's Hadean Ocean Condenses from Volcanic Outgassing
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