Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
There are 2759 entries in this glossary.| Term | Definition |
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| Regression Of Nodes |
The gradual westward movement of the nodes where the Moon’s orbit intersects the ecliptic. A full circuit takes 18.61 years, and the phenomenon is due to the gravitational influence of the Sun.
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