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| Astronomy | 3 |
| Higher Education | 3 |
| Scientific Principles | 3 |
| College Science | 2 |
| Physical Sciences | 2 |
| Physics | 2 |
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| Space Sciences | 2 |
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| Mercury | 3 |
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| Journal Articles | 3 |
| Reports - Descriptive | 2 |
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Peer reviewedLawrence, John K. – Mercury, 1980
Describes the gravitational lens effect and the chance of observing it. The use of stars, galaxies, or quasars is recommended for alignment with an intervening lens mass. (Author/SA)
Descriptors: Astronomy, Higher Education, Light, Radio
Peer reviewedUpgren, Arthur R. – Mercury, 1980
Discusses the trigonometric or heliocentric parallax method of measuring distances to the stars. A description of how parallax distances are derived, the importance of this method, and the limitations of this method are also included. (DS)
Descriptors: Astronomy, College Science, Higher Education, Measurement Techniques
Peer reviewedKelly, Ivan – Mercury, 1980
Discussed is the lack of a scientific foundation and scientific evidence favoring astrology. Included are several research studies conducted to examine astrological tenets which yield generally negative results. (Author/DS)
Descriptors: Astronomy, College Science, Higher Education, Physical Sciences
