
cosmic impact theory
The cosmic impact theory explains the origin of the Moon as resulting from a colossal collision between Earth and a Mars-sized object about 4.5 billion years ago. The impact ejected vast amounts of debris into space, which eventually coalesced under gravity to form the Moon. This explains similarities in composition between Earth's outer layers and lunar material. The theory is supported by geological evidence, computer simulations, and the Moon’s relative lack of a dense iron core. It highlights how major celestial collisions have played a crucial role in shaping planetary systems in our universe.