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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| Facula 1 Pl. Faculae |
A bright region of the Sun’s photosphere. The appearance of faculae is linked to the subsequent emergence of sunspots in the same vicinity and solar activity in general.
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