Scientists Might Have Found the Moon's Missing Metal - ExtremeTech

Scientists studying the moon have long puzzled over the low metal content of Earth’s satellite.

After all, if the moon formed from fragments of Earth, shouldn’t it have similar metal content?

The lunar highlands, visible as light regions on the surface, have lower metal content than Earth.

Meanwhile, the darker maria planes have higher metal content, but the two features would have formed at the same time. .

Craters between 1 and 3 miles (2 and 5 kilometers) in diameter showed higher metal content when viewed from the LRO, but the increase tapered off around 3-12 miles.

Sure enough, the data showed larger craters have higher concentrations of metal