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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| Tornado Nebula |
A radio source in the direction of the galactic centre, the nature of which remains unknown. The name is derived from the appearance of the radiograph of the source.
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