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 Telescope Facility Irtf |
A NASA infrared telescope located at the Mauna Kea Observatories in Hawaii, where it has been in operation since 1979 as a national facility for the USA. The main mirror is 3 metres 120 inches in diameter.
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