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National Aeronautics and Space Administration | 1968 | ASIN: B000NWMBNE | 313 pages | PDF | 17,5 MB
Today when knowledge grows at an ever-increasing rate, we are becomingacutely aware of man's influence, as well as his dependence, on his environment. Problems of pollution and depletion of resources arise from man's use and misuse of his environment. Knowledge and understanding, as well as technological capability and social determination, will be required to solve these global difficulties.
In a very real sense, the solar system is man's environment. The Sun furnishes life-giving energy to our planet and literally controls the behavior of Earth's atmosphere. The Moon and planets collectively hold the key to that full understanding of planetary origin and evolution that we will need in order to solve most effectively our challenges on Earth. Through study of both their similarities to and differences from the Earth, the planets will provide greater insight into the mysteries of our own planet.
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