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 |
|---|---|
| Icarus |
Asteroid 1566, diameter 1.4 km, discovered in 1949 by W. Baade. A member of the Apollo group, its highly elliptical orbit takes it closer to the Sun than Mercury.
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