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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| Daedalus |
Asteroid 1864, diameter 3.2 km, discovered by T. Gehrels in 1971. Its orbit crosses that of the Earth.
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