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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| Xuv |
A term sometimes applied to the short wavelength end of the ultraviolet region of the electromagnetic spectrum in the range 6-60 nanometres, where it merges with the X-ray band. It overlaps the region also known as EUV.
See also: ultraviolet astronomy.
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