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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| Infrared Galaxy |
A galaxy that emits most of its energy typically more than 90 per cent in the infrared region of the spectrum. Such galaxies are thought to have unusually high rates of star formation and, for that reason, they are also described as starburst galaxies.
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