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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| Hygeia |
Asteroid 10, diameter 430 km, discovered by A. de Gasparis in 1849. It is the fourth-largest asteroid.
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