The Moon's Mysterious Origins Still Stump Astronomers

Scientists still debate exactly how the Moon formed, though the giant-impact idea remains the leading explanation.

New simulations suggest a larger Theia-like impactor may better match the Moon’s chemistry and origin story.

Apollo samples, including the Genesis Rock, are helping researchers probe the Moon’s early magma ocean and mineral formation.

Lab experiments on lunar minerals are testing competing models of how the Earth-Moon system evolved.