Formation of the moon

A new theory proposed that a Mars-sized planet collided with Earth, forming the Moon from Earth's outer layers. This theory is a favored explanation due to computer simulations supporting its feasibility.
William K. Hartmann United States 1974
Formation of the moon

A new theory proposed that a Mars-sized planet collided with Earth, forming the Moon from Earth's outer layers. This theory is a favored explanation due to computer simulations supporting its feasibility.