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 |
|---|---|
| Acoustic Waves |
Pressure waves in a fluid. Acoustic waves can propagate through the gaseous layers of stars including the Sun. They are produced where pressure is the dominant force restoring the balance when there is a small displacement of the gas.
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