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 |
|---|---|
| Beta Particle |
An electron or positron i.e. a particle with the same mass as an electron but opposite electric charge emitted from an atomic nucleus as a result of a nuclear reaction or in the course of radioactive decay.
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