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 |
|---|---|
| Heliosphere |
The spherical volume of space extending to between 50 and 100 AU from the Sun, bounded by the zone where the solar wind merges with the interstellar medium. This boundary region is called the heliopause.
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