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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| Occultation |
The passage of one astronomical object directly in front of another so as to obscure it from view as seen by a particular observer.
See also: grazing occultation, eclipse.
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