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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| Teapot |
A familiar name sometimes applied to an asterism formed by a group of the brighter stars in the constellation Sagittarius because of its supposed resemblance to the shape of a teapot.
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