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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| Halation |
The formation of an unwanted halo of scattered light, for example in a defective optical system or on a photographic film, by internal reflection of light from a bright object.
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