The Moon has been exposed to the solar wind for billions of years. However, new evidence shows that its two hemispheres have not experienced that bombardment in the same way. Particles striking the near side and far side arrive at different speeds and carry different amounts of energy.An analysis of material collected by China’s Chang’e The Moon has been exposed to the solar wind for billions of years. However, new evidence shows that its two hemispheres have not experienced that bombardment in the same way. Particles striking the near side and far side arrive at different speeds an... [4171 chars]