When astronauts brought back rock samples from the Moon, the minerals present were mostly the same as those found on Earth. Can you think of reasons why this might be so? Would you expect minerals on Mars or Venus to be the same, or at least very similar, to those on Earth?

Question

anonymous · Answer

This might be explained by the moon and the earth once being the same planet. Some gigantic impact might have caused the two to split when still molten and coalesce into the world and the moon we know now. I'll leave you to figure out the rest...

jhonyy9 · Answer

yes i think the same like ,,ebaxter01" too ,because i have learned that the moon is a part of earth ....