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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| Phobos 2 |
Two Soviet space missions to Mars launched in 1988. Contact with one was lost en route and the other operated only briefly, returning limited data.
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