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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| Helioseismology |
The study of the interior of the Sun by the analysis of its natural modes of oscillation, which are observed spectroscopically as Doppler shifts in the absorption line spectrum.
See also: Global Oscillation Network Group.
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