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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| Jovian Planets |
A collective name for the planets Jupiter, Saturn, Uranus and Neptune, which share the general property of being gaseous giants in contrast with the rocky terrestrial planets.
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