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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| Vega 2 |
The name of two Soviet spacecraft launched in December 1984 with the dual function of dropping probes into the atmosphere of Venus in 1985 and encountering Halley’s Comet in 1986.
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