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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| Yohkoh |
The name given after its launch in August 1991 to a Japanese astronomy satellite originally designated Solar-A. Its prime purpose was the study of X-rays and gamma rays from solar flares and other energetic phenomena on the Sun.
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