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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| Thalassa |
A satellite of Neptune 1989 N5 discovered during the flyby of Voyager 2 in August 1989.
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