A team from The Open University in the UK has found that water in the moon may have actually come from the early Earth. While studying rocks brought back from the Apollo missions, they classified water concentrations in the mineral apatite, a calcium phosphate mineral abundant in the lunar crust. An analysis of the isotopic signature of the water concentrations suggests a common origin in the Earth-Moon system, which supports the theory that the moon was formed from debris left over after a large body collided with the early Earth. But there’s still more to figure out, as some scientists are skeptical that water could have even existed after the collision, as the material was still extremely hot.
[ Read the Article: Searching For the Origins Of Moon Water ]