3. Compared To Earth • Earth.com 3. Compared To Earth

We know, of course, that the moon is genetically similar to our planet in many ways. But the lack of iron and other significant elements on the moon leaves no atmospheric gas or water. That’s partly why the satellite is so barren. It’s also part of the reason that it’s without any form of life – or of further interest to science. Photo Credit: NASA/Getty Images

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