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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| Caelum The Chisel |
A small, insignificant southern constellation, introduced by Nicolas L. de Lacaille in the mid-eighteenth century with the longer name Caela Sculptoris. It has no star brighter than fourth magnitude.
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