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 |
|---|---|
| Radiation Belt |
A ring-shaped region around a planet in which electrically charged particles electrons and protons are trapped, following spiral trajectories around the direction of the magnetic field of the planet. The radiation belts surrounding the Earth are known as the Van Allen belts. Similar regions exist around other planets with magnetic fields, such as Jupiter.
|