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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| Basin |
A large, shallow, circular structure on the surface of a planet, created by the impact of a large meteorite. Basins may show concentric rings; some have been filled in by lava in subsequent volcanic activity.
See also: crater.
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