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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| Globule |
A small, almost spherical cloud of dark opaque gas and dust which shows up against a brighter background such as star clouds or a luminous nebula. It is thought that globules represent an early stage in the star formation process. The name of the Dutch-American astronomer, Bart Bok 1906-83, is associated with small globules, known as Bok globules, which may be only a few thousand astronomical units across.
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