Radiometric dating moon rocks
As it turns out, the Moon is truly a whole new world, with rocks and surface features that provide a record of events that occurred during the first billion years of the solar system.
This record is not preserved on Earth because all rocks formed during the first 800 million years of Earth's history were recycled back into the interior.
This is the familiar hemisphere of the Moon, for the Moon always has the same face turned toward Earth.(NASA) When Galileo first observed the Moon through a telescope, he discovered that its dark areas are fairly smooth and its bright areas are rugged and densely pockmarked with craters.
Also seen in this photograph are the fundamental differences between the dark lava-covered maria and the lighter highlands, or terrae, which are intensely cratered.It will certainly be revised as we continue to explore the solar system and beyond, but the basic elements of the theory are firmly established.In July 1969, a human stood for the first time on the surface of another planet, seeing landscape features that were truly alien and returning with a priceless burden of Moon rocks and other information obtainable in no other way.In many ways the Moon is a geologic Rosetta stone: an airless, waterless body untouched by erosion, containing clues to events that occurred in the early years of the solar system, which have revealed some of the details regarding its origin and providing new insight about the evolution of Earth.Although they also posed new questions, the thousands of satellite photographs brought back from the Moon have permitted us to map its surface with greater accuracy than Earth could be mapped a few decades ago.