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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| Little Dipper |
A popular North American name for the constellation Ursa Minor, describing the figure formed by its main stars: Beta β, Gamma γ, Eta η, Zeta ζ, Epsilon ε, Delta δ and Alpha α.
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