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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| Orientale Basin |
A huge impact feature on the Moon’s extreme western limb as viewed from Earth, visible only at times of favourable libration. Photographs taken from lunar orbit by spacecraft show a structure of at least three concentric rings. Unlike many other impact basins on the Moon, it is not extensively filled by dark mare material.
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