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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| Salpeter Function |
A simple theoretical expression, named after the theorist Edwin Salpeter b. 1924, for the numbers of stars of different masses among newly formed stars per unit volume of a galaxy. The Salpeter function, also known as the initial mass function, is proportional to M to the power of -2.35 where M is the mass of a star.
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