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| Astronomy | 1 |
| Geophysics | 1 |
| Instructional Materials | 1 |
| Physical Geography | 1 |
| Science Education | 1 |
| Scientific Research | 1 |
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| Science News | 1 |
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| Eberhart, Jonathan | 1 |
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Eberhart, Jonathan – Science News, 1976
Describes the physical aspects of Mars, including old and new theories. Discusses the proposed landing sites of Viking. (MLH)
Descriptors: Astronomy, Geophysics, Instructional Materials, Physical Geography
