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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| Damocles |
Asteroid 5335, discovered in 1991. It is in an unusual, highly elliptical orbit which ranges between 1.6 and 22 astronomical units from the Sun.
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