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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| Hyperbolic Space |
space that has negative curvature and within which the angles of a triangle add up to less than 180°. The surface of a saddle is a two-dimensional example.
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